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Finding the Fourth Proportional to 542,963.80, 814,445.70 and 455,046.40

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Solution

The fourth proportional to 542,963.80, 814,445.70 and 455,046.40 is: 682,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,963.80 : 814,445.70 = 455,046.40 : x
  2. Step 2: Convert to fraction form
    542,963.80/814,445.70 = 455,046.40/x
  3. Step 3: Cross multiply
    542,963.80x = 814,445.70 × 455,046.40
  4. Step 4: Simplify right side
    542,963.80x = 370,610,583,780.48
  5. Step 5: Solve for x
    x = 370,610,583,780.48/542,963.80
  6. Step 6: Final answer
    x = 682,569.60

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.