Home / 1,252,980.12-1,729,098.18-680,020.68

Finding the Fourth Proportional to 1,252,980.12, 1,729,098.18 and 680,020.68

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Solution

The fourth proportional to 1,252,980.12, 1,729,098.18 and 680,020.68 is: 938,420.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,980.12 : 1,729,098.18 = 680,020.68 : x
  2. Step 2: Convert to fraction form
    1,252,980.12/1,729,098.18 = 680,020.68/x
  3. Step 3: Cross multiply
    1,252,980.12x = 1,729,098.18 × 680,020.68
  4. Step 4: Simplify right side
    1,252,980.12x = 1,175,822,520,150.36
  5. Step 5: Solve for x
    x = 1,175,822,520,150.36/1,252,980.12
  6. Step 6: Final answer
    x = 938,420.73

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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.