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Finding the Fourth Proportional to 542,862.80, 814,294.20 and 402,894.80

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Solution

The fourth proportional to 542,862.80, 814,294.20 and 402,894.80 is: 604,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,862.80 : 814,294.20 = 402,894.80 : x
  2. Step 2: Convert to fraction form
    542,862.80/814,294.20 = 402,894.80/x
  3. Step 3: Cross multiply
    542,862.80x = 814,294.20 × 402,894.80
  4. Step 4: Simplify right side
    542,862.80x = 328,074,898,850.16
  5. Step 5: Solve for x
    x = 328,074,898,850.16/542,862.80
  6. Step 6: Final answer
    x = 604,342.20

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Similar ratio
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1.5x scale

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.