Home / 747,706.32-1,121,715-326,869.20

Finding the Fourth Proportional to 747,706.32, 1,121,715 and 326,869.20

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Solution

The fourth proportional to 747,706.32, 1,121,715 and 326,869.20 is: 490,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,706.32 : 1,121,715 = 326,869.20 : x
  2. Step 2: Convert to fraction form
    747,706.32/1,121,715 = 326,869.20/x
  3. Step 3: Cross multiply
    747,706.32x = 1,121,715 × 326,869.20
  4. Step 4: Simplify right side
    747,706.32x = 366,654,084,678
  5. Step 5: Solve for x
    x = 366,654,084,678/747,706.32
  6. Step 6: Final answer
    x = 490,371.79

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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.