Home / 947,257.38-1,307,146.95-517,446.27

Finding the Fourth Proportional to 947,257.38, 1,307,146.95 and 517,446.27

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Solution

The fourth proportional to 947,257.38, 1,307,146.95 and 517,446.27 is: 714,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,257.38 : 1,307,146.95 = 517,446.27 : x
  2. Step 2: Convert to fraction form
    947,257.38/1,307,146.95 = 517,446.27/x
  3. Step 3: Cross multiply
    947,257.38x = 1,307,146.95 × 517,446.27
  4. Step 4: Simplify right side
    947,257.38x = 676,378,313,619.38
  5. Step 5: Solve for x
    x = 676,378,313,619.38/947,257.38
  6. Step 6: Final answer
    x = 714,038.58

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Double scale
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Similar ratio
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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.