Home / 731,254.60-1,097,529.90-431,360.20

Finding the Fourth Proportional to 731,254.60, 1,097,529.90 and 431,360.20

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Solution

The fourth proportional to 731,254.60, 1,097,529.90 and 431,360.20 is: 647,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,254.60 : 1,097,529.90 = 431,360.20 : x
  2. Step 2: Convert to fraction form
    731,254.60/1,097,529.90 = 431,360.20/x
  3. Step 3: Cross multiply
    731,254.60x = 1,097,529.90 × 431,360.20
  4. Step 4: Simplify right side
    731,254.60x = 473,430,717,169.98
  5. Step 5: Solve for x
    x = 473,430,717,169.98/731,254.60
  6. Step 6: Final answer
    x = 647,422.55

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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.