Home / 708,399.18-977,584.62-386,109.30

Finding the Fourth Proportional to 708,399.18, 977,584.62 and 386,109.30

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Solution

The fourth proportional to 708,399.18, 977,584.62 and 386,109.30 is: 532,827.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,399.18 : 977,584.62 = 386,109.30 : x
  2. Step 2: Convert to fraction form
    708,399.18/977,584.62 = 386,109.30/x
  3. Step 3: Cross multiply
    708,399.18x = 977,584.62 × 386,109.30
  4. Step 4: Simplify right side
    708,399.18x = 377,454,513,318.97
  5. Step 5: Solve for x
    x = 377,454,513,318.97/708,399.18
  6. Step 6: Final answer
    x = 532,827.43

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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.