Home / 782,007.17-1,172,172.41-512,032.96

Finding the Fourth Proportional to 782,007.17, 1,172,172.41 and 512,032.96

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Solution

The fourth proportional to 782,007.17, 1,172,172.41 and 512,032.96 is: 767,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,007.17 : 1,172,172.41 = 512,032.96 : x
  2. Step 2: Convert to fraction form
    782,007.17/1,172,172.41 = 512,032.96/x
  3. Step 3: Cross multiply
    782,007.17x = 1,172,172.41 × 512,032.96
  4. Step 4: Simplify right side
    782,007.17x = 600,190,900,301.61
  5. Step 5: Solve for x
    x = 600,190,900,301.61/782,007.17
  6. Step 6: Final answer
    x = 767,500.51

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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.