Home / 708,665.54-977,945.28-386,378.42

Finding the Fourth Proportional to 708,665.54, 977,945.28 and 386,378.42

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Solution

The fourth proportional to 708,665.54, 977,945.28 and 386,378.42 is: 533,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,665.54 : 977,945.28 = 386,378.42 : x
  2. Step 2: Convert to fraction form
    708,665.54/977,945.28 = 386,378.42/x
  3. Step 3: Cross multiply
    708,665.54x = 977,945.28 × 386,378.42
  4. Step 4: Simplify right side
    708,665.54x = 377,856,952,132.86
  5. Step 5: Solve for x
    x = 377,856,952,132.86/708,665.54
  6. Step 6: Final answer
    x = 533,195.04

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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.