Home / 831,862.61-1,147,981.56-469,285.35

Finding the Fourth Proportional to 831,862.61, 1,147,981.56 and 469,285.35

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Solution

The fourth proportional to 831,862.61, 1,147,981.56 and 469,285.35 is: 647,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,862.61 : 1,147,981.56 = 469,285.35 : x
  2. Step 2: Convert to fraction form
    831,862.61/1,147,981.56 = 469,285.35/x
  3. Step 3: Cross multiply
    831,862.61x = 1,147,981.56 × 469,285.35
  4. Step 4: Simplify right side
    831,862.61x = 538,730,924,753.13
  5. Step 5: Solve for x
    x = 538,730,924,753.13/831,862.61
  6. Step 6: Final answer
    x = 647,620.07

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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.