Home / 907,287.41-1,252,046.77-499,380.53

Finding the Fourth Proportional to 907,287.41, 1,252,046.77 and 499,380.53

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Solution

The fourth proportional to 907,287.41, 1,252,046.77 and 499,380.53 is: 689,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,287.41 : 1,252,046.77 = 499,380.53 : x
  2. Step 2: Convert to fraction form
    907,287.41/1,252,046.77 = 499,380.53/x
  3. Step 3: Cross multiply
    907,287.41x = 1,252,046.77 × 499,380.53
  4. Step 4: Simplify right side
    907,287.41x = 625,247,772,078.70
  5. Step 5: Solve for x
    x = 625,247,772,078.70/907,287.41
  6. Step 6: Final answer
    x = 689,139.70

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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.