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Finding the Fourth Proportional to 542,825.60, 814,238.40 and 402,857.60

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Solution

The fourth proportional to 542,825.60, 814,238.40 and 402,857.60 is: 604,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,825.60 : 814,238.40 = 402,857.60 : x
  2. Step 2: Convert to fraction form
    542,825.60/814,238.40 = 402,857.60/x
  3. Step 3: Cross multiply
    542,825.60x = 814,238.40 × 402,857.60
  4. Step 4: Simplify right side
    542,825.60x = 328,022,127,651.84
  5. Step 5: Solve for x
    x = 328,022,127,651.84/542,825.60
  6. Step 6: Final answer
    x = 604,286.40

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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.