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Finding the Fourth Proportional to 630,310.46, 945,473.88 and 209,586.32

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Solution

The fourth proportional to 630,310.46, 945,473.88 and 209,586.32 is: 314,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,310.46 : 945,473.88 = 209,586.32 : x
  2. Step 2: Convert to fraction form
    630,310.46/945,473.88 = 209,586.32/x
  3. Step 3: Cross multiply
    630,310.46x = 945,473.88 × 209,586.32
  4. Step 4: Simplify right side
    630,310.46x = 198,158,391,165.32
  5. Step 5: Solve for x
    x = 198,158,391,165.32/630,310.46
  6. Step 6: Final answer
    x = 314,382.20

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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.