Home / 1,388,077.24-1,915,551.70-807,439.70

Finding the Fourth Proportional to 1,388,077.24, 1,915,551.70 and 807,439.70

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Solution

The fourth proportional to 1,388,077.24, 1,915,551.70 and 807,439.70 is: 1,114,269.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,077.24 : 1,915,551.70 = 807,439.70 : x
  2. Step 2: Convert to fraction form
    1,388,077.24/1,915,551.70 = 807,439.70/x
  3. Step 3: Cross multiply
    1,388,077.24x = 1,915,551.70 × 807,439.70
  4. Step 4: Simplify right side
    1,388,077.24x = 1,546,692,489,982.49
  5. Step 5: Solve for x
    x = 1,546,692,489,982.49/1,388,077.24
  6. Step 6: Final answer
    x = 1,114,269.76

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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.