Home / 545,311.10-752,522.19-315,899.66

Finding the Fourth Proportional to 545,311.10, 752,522.19 and 315,899.66

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Solution

The fourth proportional to 545,311.10, 752,522.19 and 315,899.66 is: 435,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,311.10 : 752,522.19 = 315,899.66 : x
  2. Step 2: Convert to fraction form
    545,311.10/752,522.19 = 315,899.66/x
  3. Step 3: Cross multiply
    545,311.10x = 752,522.19 × 315,899.66
  4. Step 4: Simplify right side
    545,311.10x = 237,721,503,963.46
  5. Step 5: Solve for x
    x = 237,721,503,963.46/545,311.10
  6. Step 6: Final answer
    x = 435,937.40

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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.