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Finding the Fourth Proportional to 777,830.12, 1,073,024.04 and 519,770.42

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Solution

The fourth proportional to 777,830.12, 1,073,024.04 and 519,770.42 is: 717,028.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,830.12 : 1,073,024.04 = 519,770.42 : x
  2. Step 2: Convert to fraction form
    777,830.12/1,073,024.04 = 519,770.42/x
  3. Step 3: Cross multiply
    777,830.12x = 1,073,024.04 × 519,770.42
  4. Step 4: Simplify right side
    777,830.12x = 557,726,150,575.78
  5. Step 5: Solve for x
    x = 557,726,150,575.78/777,830.12
  6. Step 6: Final answer
    x = 717,028.23

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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.