Home / 802,708.38-1,107,748.28-440,131.32

Finding the Fourth Proportional to 802,708.38, 1,107,748.28 and 440,131.32

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Solution

The fourth proportional to 802,708.38, 1,107,748.28 and 440,131.32 is: 607,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,708.38 : 1,107,748.28 = 440,131.32 : x
  2. Step 2: Convert to fraction form
    802,708.38/1,107,748.28 = 440,131.32/x
  3. Step 3: Cross multiply
    802,708.38x = 1,107,748.28 × 440,131.32
  4. Step 4: Simplify right side
    802,708.38x = 487,554,713,804.46
  5. Step 5: Solve for x
    x = 487,554,713,804.46/802,708.38
  6. Step 6: Final answer
    x = 607,387.10

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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.