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Finding the Fourth Proportional to 547,207.32, 819,564.30 and 447,218.04

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Solution

The fourth proportional to 547,207.32, 819,564.30 and 447,218.04 is: 669,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,207.32 : 819,564.30 = 447,218.04 : x
  2. Step 2: Convert to fraction form
    547,207.32/819,564.30 = 447,218.04/x
  3. Step 3: Cross multiply
    547,207.32x = 819,564.30 × 447,218.04
  4. Step 4: Simplify right side
    547,207.32x = 366,523,939,899.97
  5. Step 5: Solve for x
    x = 366,523,939,899.97/547,207.32
  6. Step 6: Final answer
    x = 669,808.18

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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.