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Finding the Fourth Proportional to 647,570.10, 971,063.55 and 292,401.30

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Solution

The fourth proportional to 647,570.10, 971,063.55 and 292,401.30 is: 438,470.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,570.10 : 971,063.55 = 292,401.30 : x
  2. Step 2: Convert to fraction form
    647,570.10/971,063.55 = 292,401.30/x
  3. Step 3: Cross multiply
    647,570.10x = 971,063.55 × 292,401.30
  4. Step 4: Simplify right side
    647,570.10x = 283,940,244,402.62
  5. Step 5: Solve for x
    x = 283,940,244,402.62/647,570.10
  6. Step 6: Final answer
    x = 438,470.28

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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.