Home / 1,431,966.30-2,148,001.29-485,428.38

Finding the Fourth Proportional to 1,431,966.30, 2,148,001.29 and 485,428.38

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Solution

The fourth proportional to 1,431,966.30, 2,148,001.29 and 485,428.38 is: 728,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,966.30 : 2,148,001.29 = 485,428.38 : x
  2. Step 2: Convert to fraction form
    1,431,966.30/2,148,001.29 = 485,428.38/x
  3. Step 3: Cross multiply
    1,431,966.30x = 2,148,001.29 × 485,428.38
  4. Step 4: Simplify right side
    1,431,966.30x = 1,042,700,786,442.61
  5. Step 5: Solve for x
    x = 1,042,700,786,442.61/1,431,966.30
  6. Step 6: Final answer
    x = 728,160.14

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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.