Home / 477,211.80-658,513.12-280,947.12

Finding the Fourth Proportional to 477,211.80, 658,513.12 and 280,947.12

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Solution

The fourth proportional to 477,211.80, 658,513.12 and 280,947.12 is: 387,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,211.80 : 658,513.12 = 280,947.12 : x
  2. Step 2: Convert to fraction form
    477,211.80/658,513.12 = 280,947.12/x
  3. Step 3: Cross multiply
    477,211.80x = 658,513.12 × 280,947.12
  4. Step 4: Simplify right side
    477,211.80x = 185,007,364,546.21
  5. Step 5: Solve for x
    x = 185,007,364,546.21/477,211.80
  6. Step 6: Final answer
    x = 387,683.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.