Home / 486,513.15-729,769.73-318,551.55

Finding the Fourth Proportional to 486,513.15, 729,769.73 and 318,551.55

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Solution

The fourth proportional to 486,513.15, 729,769.73 and 318,551.55 is: 477,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,513.15 : 729,769.73 = 318,551.55 : x
  2. Step 2: Convert to fraction form
    486,513.15/729,769.73 = 318,551.55/x
  3. Step 3: Cross multiply
    486,513.15x = 729,769.73 × 318,551.55
  4. Step 4: Simplify right side
    486,513.15x = 232,469,277,041.82
  5. Step 5: Solve for x
    x = 232,469,277,041.82/486,513.15
  6. Step 6: Final answer
    x = 477,827.33

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Similar ratio
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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.