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Finding the Fourth Proportional to 542,848.30, 814,272.45 and 455,757.10

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Solution

The fourth proportional to 542,848.30, 814,272.45 and 455,757.10 is: 683,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,848.30 : 814,272.45 = 455,757.10 : x
  2. Step 2: Convert to fraction form
    542,848.30/814,272.45 = 455,757.10/x
  3. Step 3: Cross multiply
    542,848.30x = 814,272.45 × 455,757.10
  4. Step 4: Simplify right side
    542,848.30x = 371,110,450,421.90
  5. Step 5: Solve for x
    x = 371,110,450,421.90/542,848.30
  6. Step 6: Final answer
    x = 683,635.65

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Double scale
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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.