Home / 1,240,511.13-1,861,140.24-387,548.33

Finding the Fourth Proportional to 1,240,511.13, 1,861,140.24 and 387,548.33

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Solution

The fourth proportional to 1,240,511.13, 1,861,140.24 and 387,548.33 is: 581,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,511.13 : 1,861,140.24 = 387,548.33 : x
  2. Step 2: Convert to fraction form
    1,240,511.13/1,861,140.24 = 387,548.33/x
  3. Step 3: Cross multiply
    1,240,511.13x = 1,861,140.24 × 387,548.33
  4. Step 4: Simplify right side
    1,240,511.13x = 721,281,791,907.80
  5. Step 5: Solve for x
    x = 721,281,791,907.80/1,240,511.13
  6. Step 6: Final answer
    x = 581,439.19

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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.