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Finding the Fourth Proportional to 549,972.30, 824,958.45 and 455,493.90

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Solution

The fourth proportional to 549,972.30, 824,958.45 and 455,493.90 is: 683,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,972.30 : 824,958.45 = 455,493.90 : x
  2. Step 2: Convert to fraction form
    549,972.30/824,958.45 = 455,493.90/x
  3. Step 3: Cross multiply
    549,972.30x = 824,958.45 × 455,493.90
  4. Step 4: Simplify right side
    549,972.30x = 375,763,541,728.46
  5. Step 5: Solve for x
    x = 375,763,541,728.46/549,972.30
  6. Step 6: Final answer
    x = 683,240.85

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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.