Home / 731,186.10-1,097,427.15-431,291.70

Finding the Fourth Proportional to 731,186.10, 1,097,427.15 and 431,291.70

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Solution

The fourth proportional to 731,186.10, 1,097,427.15 and 431,291.70 is: 647,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,186.10 : 1,097,427.15 = 431,291.70 : x
  2. Step 2: Convert to fraction form
    731,186.10/1,097,427.15 = 431,291.70/x
  3. Step 3: Cross multiply
    731,186.10x = 1,097,427.15 × 431,291.70
  4. Step 4: Simplify right side
    731,186.10x = 473,311,221,149.66
  5. Step 5: Solve for x
    x = 473,311,221,149.66/731,186.10
  6. Step 6: Final answer
    x = 647,319.77

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Double scale
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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.