Home / 491,320.10-735,799.14-280,318.34

Finding the Fourth Proportional to 491,320.10, 735,799.14 and 280,318.34

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Solution

The fourth proportional to 491,320.10, 735,799.14 and 280,318.34 is: 419,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,320.10 : 735,799.14 = 280,318.34 : x
  2. Step 2: Convert to fraction form
    491,320.10/735,799.14 = 280,318.34/x
  3. Step 3: Cross multiply
    491,320.10x = 735,799.14 × 280,318.34
  4. Step 4: Simplify right side
    491,320.10x = 206,257,989,819.23
  5. Step 5: Solve for x
    x = 206,257,989,819.23/491,320.10
  6. Step 6: Final answer
    x = 419,803.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.