Home / 915,691.50-1,263,732.19-513,361.26

Finding the Fourth Proportional to 915,691.50, 1,263,732.19 and 513,361.26

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Solution

The fourth proportional to 915,691.50, 1,263,732.19 and 513,361.26 is: 708,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,691.50 : 1,263,732.19 = 513,361.26 : x
  2. Step 2: Convert to fraction form
    915,691.50/1,263,732.19 = 513,361.26/x
  3. Step 3: Cross multiply
    915,691.50x = 1,263,732.19 × 513,361.26
  4. Step 4: Simplify right side
    915,691.50x = 648,751,149,360.96
  5. Step 5: Solve for x
    x = 648,751,149,360.96/915,691.50
  6. Step 6: Final answer
    x = 708,482.22

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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.