Home / 1,252,947.34-1,729,068.69-679,987.90

Finding the Fourth Proportional to 1,252,947.34, 1,729,068.69 and 679,987.90

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Solution

The fourth proportional to 1,252,947.34, 1,729,068.69 and 679,987.90 is: 938,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,947.34 : 1,729,068.69 = 679,987.90 : x
  2. Step 2: Convert to fraction form
    1,252,947.34/1,729,068.69 = 679,987.90/x
  3. Step 3: Cross multiply
    1,252,947.34x = 1,729,068.69 × 679,987.90
  4. Step 4: Simplify right side
    1,252,947.34x = 1,175,745,787,468.85
  5. Step 5: Solve for x
    x = 1,175,745,787,468.85/1,252,947.34
  6. Step 6: Final answer
    x = 938,384.04

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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.