Home / 708,357.88-977,505.36-386,061.10

Finding the Fourth Proportional to 708,357.88, 977,505.36 and 386,061.10

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Solution

The fourth proportional to 708,357.88, 977,505.36 and 386,061.10 is: 532,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,357.88 : 977,505.36 = 386,061.10 : x
  2. Step 2: Convert to fraction form
    708,357.88/977,505.36 = 386,061.10/x
  3. Step 3: Cross multiply
    708,357.88x = 977,505.36 × 386,061.10
  4. Step 4: Simplify right side
    708,357.88x = 377,376,794,537.50
  5. Step 5: Solve for x
    x = 377,376,794,537.50/708,357.88
  6. Step 6: Final answer
    x = 532,748.78

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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.