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Finding the Fourth Proportional to 347,507.20, 522,374.40 and 322,854.40

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Solution

The fourth proportional to 347,507.20, 522,374.40 and 322,854.40 is: 485,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,507.20 : 522,374.40 = 322,854.40 : x
  2. Step 2: Convert to fraction form
    347,507.20/522,374.40 = 322,854.40/x
  3. Step 3: Cross multiply
    347,507.20x = 522,374.40 × 322,854.40
  4. Step 4: Simplify right side
    347,507.20x = 168,650,873,487.36
  5. Step 5: Solve for x
    x = 168,650,873,487.36/347,507.20
  6. Step 6: Final answer
    x = 485,316.20

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1.5x scale

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.