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Finding the Fourth Proportional to 648,004.80, 971,569.80 and 344,449.20

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Solution

The fourth proportional to 648,004.80, 971,569.80 and 344,449.20 is: 516,441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,004.80 : 971,569.80 = 344,449.20 : x
  2. Step 2: Convert to fraction form
    648,004.80/971,569.80 = 344,449.20/x
  3. Step 3: Cross multiply
    648,004.80x = 971,569.80 × 344,449.20
  4. Step 4: Simplify right side
    648,004.80x = 334,656,440,354.16
  5. Step 5: Solve for x
    x = 334,656,440,354.16/648,004.80
  6. Step 6: Final answer
    x = 516,441.30

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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.