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Finding the Fourth Proportional to 347,301.20, 522,065.40 and 322,648.40

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Solution

The fourth proportional to 347,301.20, 522,065.40 and 322,648.40 is: 485,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,301.20 : 522,065.40 = 322,648.40 : x
  2. Step 2: Convert to fraction form
    347,301.20/522,065.40 = 322,648.40/x
  3. Step 3: Cross multiply
    347,301.20x = 522,065.40 × 322,648.40
  4. Step 4: Simplify right side
    347,301.20x = 168,443,566,005.36
  5. Step 5: Solve for x
    x = 168,443,566,005.36/347,301.20
  6. Step 6: Final answer
    x = 485,007.15

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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.