Home / 908,037.46-1,253,100.17-500,140.78

Finding the Fourth Proportional to 908,037.46, 1,253,100.17 and 500,140.78

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Solution

The fourth proportional to 908,037.46, 1,253,100.17 and 500,140.78 is: 690,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,037.46 : 1,253,100.17 = 500,140.78 : x
  2. Step 2: Convert to fraction form
    908,037.46/1,253,100.17 = 500,140.78/x
  3. Step 3: Cross multiply
    908,037.46x = 1,253,100.17 × 500,140.78
  4. Step 4: Simplify right side
    908,037.46x = 626,726,494,559.53
  5. Step 5: Solve for x
    x = 626,726,494,559.53/908,037.46
  6. Step 6: Final answer
    x = 690,198.94

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.