Home / 947,138.06-1,307,069.80-517,446.02

Finding the Fourth Proportional to 947,138.06, 1,307,069.80 and 517,446.02

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Solution

The fourth proportional to 947,138.06, 1,307,069.80 and 517,446.02 is: 714,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,138.06 : 1,307,069.80 = 517,446.02 : x
  2. Step 2: Convert to fraction form
    947,138.06/1,307,069.80 = 517,446.02/x
  3. Step 3: Cross multiply
    947,138.06x = 1,307,069.80 × 517,446.02
  4. Step 4: Simplify right side
    947,138.06x = 676,338,065,872.20
  5. Step 5: Solve for x
    x = 676,338,065,872.20/947,138.06
  6. Step 6: Final answer
    x = 714,086.04

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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.