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Finding the Fourth Proportional to 840,612, 1,160,044.56 and 538,806.72

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Solution

The fourth proportional to 840,612, 1,160,044.56 and 538,806.72 is: 743,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,612 : 1,160,044.56 = 538,806.72 : x
  2. Step 2: Convert to fraction form
    840,612/1,160,044.56 = 538,806.72/x
  3. Step 3: Cross multiply
    840,612x = 1,160,044.56 × 538,806.72
  4. Step 4: Simplify right side
    840,612x = 625,039,804,427.44
  5. Step 5: Solve for x
    x = 625,039,804,427.44/840,612
  6. Step 6: Final answer
    x = 743,553.27

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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.