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Finding the Fourth Proportional to 486,023.60, 729,035.40 and 361,607.60

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Solution

The fourth proportional to 486,023.60, 729,035.40 and 361,607.60 is: 542,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,023.60 : 729,035.40 = 361,607.60 : x
  2. Step 2: Convert to fraction form
    486,023.60/729,035.40 = 361,607.60/x
  3. Step 3: Cross multiply
    486,023.60x = 729,035.40 × 361,607.60
  4. Step 4: Simplify right side
    486,023.60x = 263,624,741,309.04
  5. Step 5: Solve for x
    x = 263,624,741,309.04/486,023.60
  6. Step 6: Final answer
    x = 542,411.40

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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.