Home / 887,501.80-1,331,447.10-438,437.80

Finding the Fourth Proportional to 887,501.80, 1,331,447.10 and 438,437.80

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Solution

The fourth proportional to 887,501.80, 1,331,447.10 and 438,437.80 is: 657,752.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,501.80 : 1,331,447.10 = 438,437.80 : x
  2. Step 2: Convert to fraction form
    887,501.80/1,331,447.10 = 438,437.80/x
  3. Step 3: Cross multiply
    887,501.80x = 1,331,447.10 × 438,437.80
  4. Step 4: Simplify right side
    887,501.80x = 583,756,737,340.38
  5. Step 5: Solve for x
    x = 583,756,737,340.38/887,501.80
  6. Step 6: Final answer
    x = 657,752.74

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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.