Home / 708,335.73-977,478.30-386,039.43

Finding the Fourth Proportional to 708,335.73, 977,478.30 and 386,039.43

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Solution

The fourth proportional to 708,335.73, 977,478.30 and 386,039.43 is: 532,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,335.73 : 977,478.30 = 386,039.43 : x
  2. Step 2: Convert to fraction form
    708,335.73/977,478.30 = 386,039.43/x
  3. Step 3: Cross multiply
    708,335.73x = 977,478.30 × 386,039.43
  4. Step 4: Simplify right side
    708,335.73x = 377,345,165,769.37
  5. Step 5: Solve for x
    x = 377,345,165,769.37/708,335.73
  6. Step 6: Final answer
    x = 532,720.78

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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.