Home / 708,406.20-977,591.94-386,115.30

Finding the Fourth Proportional to 708,406.20, 977,591.94 and 386,115.30

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Solution

The fourth proportional to 708,406.20, 977,591.94 and 386,115.30 is: 532,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,406.20 : 977,591.94 = 386,115.30 : x
  2. Step 2: Convert to fraction form
    708,406.20/977,591.94 = 386,115.30/x
  3. Step 3: Cross multiply
    708,406.20x = 977,591.94 × 386,115.30
  4. Step 4: Simplify right side
    708,406.20x = 377,463,205,190.68
  5. Step 5: Solve for x
    x = 377,463,205,190.68/708,406.20
  6. Step 6: Final answer
    x = 532,834.42

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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.