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Finding the Fourth Proportional to 647,318.38, 892,882.46 and 429,522.34

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Solution

The fourth proportional to 647,318.38, 892,882.46 and 429,522.34 is: 592,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,318.38 : 892,882.46 = 429,522.34 : x
  2. Step 2: Convert to fraction form
    647,318.38/892,882.46 = 429,522.34/x
  3. Step 3: Cross multiply
    647,318.38x = 892,882.46 × 429,522.34
  4. Step 4: Simplify right side
    647,318.38x = 383,512,963,564.16
  5. Step 5: Solve for x
    x = 383,512,963,564.16/647,318.38
  6. Step 6: Final answer
    x = 592,464.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.