Home / 947,439.30-1,307,469.51-517,719.42

Finding the Fourth Proportional to 947,439.30, 1,307,469.51 and 517,719.42

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Solution

The fourth proportional to 947,439.30, 1,307,469.51 and 517,719.42 is: 714,454.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,439.30 : 1,307,469.51 = 517,719.42 : x
  2. Step 2: Convert to fraction form
    947,439.30/1,307,469.51 = 517,719.42/x
  3. Step 3: Cross multiply
    947,439.30x = 1,307,469.51 × 517,719.42
  4. Step 4: Simplify right side
    947,439.30x = 676,902,356,384.88
  5. Step 5: Solve for x
    x = 676,902,356,384.88/947,439.30
  6. Step 6: Final answer
    x = 714,454.59

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Double scale
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1.5x scale

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.