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Finding the Fourth Proportional to 514,729.80, 772,613.10 and 248,704.20

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Solution

The fourth proportional to 514,729.80, 772,613.10 and 248,704.20 is: 373,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,729.80 : 772,613.10 = 248,704.20 : x
  2. Step 2: Convert to fraction form
    514,729.80/772,613.10 = 248,704.20/x
  3. Step 3: Cross multiply
    514,729.80x = 772,613.10 × 248,704.20
  4. Step 4: Simplify right side
    514,729.80x = 192,152,122,945.02
  5. Step 5: Solve for x
    x = 192,152,122,945.02/514,729.80
  6. Step 6: Final answer
    x = 373,306.78

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1.5x scale

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.