Home / 802,279.50-1,107,154.38-439,695.56

Finding the Fourth Proportional to 802,279.50, 1,107,154.38 and 439,695.56

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Solution

The fourth proportional to 802,279.50, 1,107,154.38 and 439,695.56 is: 606,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,279.50 : 1,107,154.38 = 439,695.56 : x
  2. Step 2: Convert to fraction form
    802,279.50/1,107,154.38 = 439,695.56/x
  3. Step 3: Cross multiply
    802,279.50x = 1,107,154.38 × 439,695.56
  4. Step 4: Simplify right side
    802,279.50x = 486,810,863,736.61
  5. Step 5: Solve for x
    x = 486,810,863,736.61/802,279.50
  6. Step 6: Final answer
    x = 606,784.62

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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.