Home / 1,329,365.80-1,994,048.70-442,901.80

Finding the Fourth Proportional to 1,329,365.80, 1,994,048.70 and 442,901.80

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Solution

The fourth proportional to 1,329,365.80, 1,994,048.70 and 442,901.80 is: 664,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,365.80 : 1,994,048.70 = 442,901.80 : x
  2. Step 2: Convert to fraction form
    1,329,365.80/1,994,048.70 = 442,901.80/x
  3. Step 3: Cross multiply
    1,329,365.80x = 1,994,048.70 × 442,901.80
  4. Step 4: Simplify right side
    1,329,365.80x = 883,167,758,517.66
  5. Step 5: Solve for x
    x = 883,167,758,517.66/1,329,365.80
  6. Step 6: Final answer
    x = 664,352.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.