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Finding the Fourth Proportional to 630,229.12, 945,763.84 and 326,902.88

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Solution

The fourth proportional to 630,229.12, 945,763.84 and 326,902.88 is: 490,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,229.12 : 945,763.84 = 326,902.88 : x
  2. Step 2: Convert to fraction form
    630,229.12/945,763.84 = 326,902.88/x
  3. Step 3: Cross multiply
    630,229.12x = 945,763.84 × 326,902.88
  4. Step 4: Simplify right side
    630,229.12x = 309,172,923,095.86
  5. Step 5: Solve for x
    x = 309,172,923,095.86/630,229.12
  6. Step 6: Final answer
    x = 490,572.26

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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.