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Finding the Fourth Proportional to 512,123.02, 706,995.48 and 374,147.20

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Solution

The fourth proportional to 512,123.02, 706,995.48 and 374,147.20 is: 516,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,123.02 : 706,995.48 = 374,147.20 : x
  2. Step 2: Convert to fraction form
    512,123.02/706,995.48 = 374,147.20/x
  3. Step 3: Cross multiply
    512,123.02x = 706,995.48 × 374,147.20
  4. Step 4: Simplify right side
    512,123.02x = 264,520,379,254.66
  5. Step 5: Solve for x
    x = 264,520,379,254.66/512,123.02
  6. Step 6: Final answer
    x = 516,517.26

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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.