Home / 728,172.52-1,092,247.98-443,946.76

Finding the Fourth Proportional to 728,172.52, 1,092,247.98 and 443,946.76

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Solution

The fourth proportional to 728,172.52, 1,092,247.98 and 443,946.76 is: 665,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,172.52 : 1,092,247.98 = 443,946.76 : x
  2. Step 2: Convert to fraction form
    728,172.52/1,092,247.98 = 443,946.76/x
  3. Step 3: Cross multiply
    728,172.52x = 1,092,247.98 × 443,946.76
  4. Step 4: Simplify right side
    728,172.52x = 484,899,951,837.55
  5. Step 5: Solve for x
    x = 484,899,951,837.55/728,172.52
  6. Step 6: Final answer
    x = 665,913.56

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1.5x scale

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.