Home / 657,255.20-986,271.60-479,314.40

Finding the Fourth Proportional to 657,255.20, 986,271.60 and 479,314.40

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Solution

The fourth proportional to 657,255.20, 986,271.60 and 479,314.40 is: 719,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,255.20 : 986,271.60 = 479,314.40 : x
  2. Step 2: Convert to fraction form
    657,255.20/986,271.60 = 479,314.40/x
  3. Step 3: Cross multiply
    657,255.20x = 986,271.60 × 479,314.40
  4. Step 4: Simplify right side
    657,255.20x = 472,734,180,191.04
  5. Step 5: Solve for x
    x = 472,734,180,191.04/657,255.20
  6. Step 6: Final answer
    x = 719,255.14

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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.