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Finding the Fourth Proportional to 630,672.10, 946,008.15 and 406,723.30

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Solution

The fourth proportional to 630,672.10, 946,008.15 and 406,723.30 is: 610,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,672.10 : 946,008.15 = 406,723.30 : x
  2. Step 2: Convert to fraction form
    630,672.10/946,008.15 = 406,723.30/x
  3. Step 3: Cross multiply
    630,672.10x = 946,008.15 × 406,723.30
  4. Step 4: Simplify right side
    630,672.10x = 384,763,556,594.90
  5. Step 5: Solve for x
    x = 384,763,556,594.90/630,672.10
  6. Step 6: Final answer
    x = 610,084.95

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Similar ratio
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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.