Home / 460,617.12-690,950.43-145,098.72

Finding the Fourth Proportional to 460,617.12, 690,950.43 and 145,098.72

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Solution

The fourth proportional to 460,617.12, 690,950.43 and 145,098.72 is: 217,655.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,617.12 : 690,950.43 = 145,098.72 : x
  2. Step 2: Convert to fraction form
    460,617.12/690,950.43 = 145,098.72/x
  3. Step 3: Cross multiply
    460,617.12x = 690,950.43 × 145,098.72
  4. Step 4: Simplify right side
    460,617.12x = 100,256,022,976.45
  5. Step 5: Solve for x
    x = 100,256,022,976.45/460,617.12
  6. Step 6: Final answer
    x = 217,655.88

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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.