Home / 710,729.20-1,064,711.40-394,620.40

Finding the Fourth Proportional to 710,729.20, 1,064,711.40 and 394,620.40

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Solution

The fourth proportional to 710,729.20, 1,064,711.40 and 394,620.40 is: 591,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,729.20 : 1,064,711.40 = 394,620.40 : x
  2. Step 2: Convert to fraction form
    710,729.20/1,064,711.40 = 394,620.40/x
  3. Step 3: Cross multiply
    710,729.20x = 1,064,711.40 × 394,620.40
  4. Step 4: Simplify right side
    710,729.20x = 420,156,838,552.56
  5. Step 5: Solve for x
    x = 420,156,838,552.56/710,729.20
  6. Step 6: Final answer
    x = 591,163.05

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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.