Home / 1,252,949.34-1,729,071.46-679,989.90

Finding the Fourth Proportional to 1,252,949.34, 1,729,071.46 and 679,989.90

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Solution

The fourth proportional to 1,252,949.34, 1,729,071.46 and 679,989.90 is: 938,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,949.34 : 1,729,071.46 = 679,989.90 : x
  2. Step 2: Convert to fraction form
    1,252,949.34/1,729,071.46 = 679,989.90/x
  3. Step 3: Cross multiply
    1,252,949.34x = 1,729,071.46 × 679,989.90
  4. Step 4: Simplify right side
    1,252,949.34x = 1,175,751,129,178.25
  5. Step 5: Solve for x
    x = 1,175,751,129,178.25/1,252,949.34
  6. Step 6: Final answer
    x = 938,386.81

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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.