Home / 835,385.80-1,253,078.70-204,291.40

Finding the Fourth Proportional to 835,385.80, 1,253,078.70 and 204,291.40

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Solution

The fourth proportional to 835,385.80, 1,253,078.70 and 204,291.40 is: 306,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,385.80 : 1,253,078.70 = 204,291.40 : x
  2. Step 2: Convert to fraction form
    835,385.80/1,253,078.70 = 204,291.40/x
  3. Step 3: Cross multiply
    835,385.80x = 1,253,078.70 × 204,291.40
  4. Step 4: Simplify right side
    835,385.80x = 255,993,201,933.18
  5. Step 5: Solve for x
    x = 255,993,201,933.18/835,385.80
  6. Step 6: Final answer
    x = 306,437.10

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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.