Home / 947,440.92-1,307,471.87-517,721.05

Finding the Fourth Proportional to 947,440.92, 1,307,471.87 and 517,721.05

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Solution

The fourth proportional to 947,440.92, 1,307,471.87 and 517,721.05 is: 714,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,440.92 : 1,307,471.87 = 517,721.05 : x
  2. Step 2: Convert to fraction form
    947,440.92/1,307,471.87 = 517,721.05/x
  3. Step 3: Cross multiply
    947,440.92x = 1,307,471.87 × 517,721.05
  4. Step 4: Simplify right side
    947,440.92x = 676,905,711,946.50
  5. Step 5: Solve for x
    x = 676,905,711,946.50/947,440.92
  6. Step 6: Final answer
    x = 714,456.91

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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.