Home / 785,505.12-1,177,159.38-424,897.57

Finding the Fourth Proportional to 785,505.12, 1,177,159.38 and 424,897.57

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Solution

The fourth proportional to 785,505.12, 1,177,159.38 and 424,897.57 is: 636,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,505.12 : 1,177,159.38 = 424,897.57 : x
  2. Step 2: Convert to fraction form
    785,505.12/1,177,159.38 = 424,897.57/x
  3. Step 3: Cross multiply
    785,505.12x = 1,177,159.38 × 424,897.57
  4. Step 4: Simplify right side
    785,505.12x = 500,172,160,064.71
  5. Step 5: Solve for x
    x = 500,172,160,064.71/785,505.12
  6. Step 6: Final answer
    x = 636,752.26

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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.