Home / 1,272,001.30-1,906,816.11-429,964.18

Finding the Fourth Proportional to 1,272,001.30, 1,906,816.11 and 429,964.18

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Solution

The fourth proportional to 1,272,001.30, 1,906,816.11 and 429,964.18 is: 644,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,001.30 : 1,906,816.11 = 429,964.18 : x
  2. Step 2: Convert to fraction form
    1,272,001.30/1,906,816.11 = 429,964.18/x
  3. Step 3: Cross multiply
    1,272,001.30x = 1,906,816.11 × 429,964.18
  4. Step 4: Simplify right side
    1,272,001.30x = 819,862,625,146.94
  5. Step 5: Solve for x
    x = 819,862,625,146.94/1,272,001.30
  6. Step 6: Final answer
    x = 644,545.43

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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.