Home / 1,240,509.13-1,861,137.24-387,546.33

Finding the Fourth Proportional to 1,240,509.13, 1,861,137.24 and 387,546.33

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Solution

The fourth proportional to 1,240,509.13, 1,861,137.24 and 387,546.33 is: 581,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,509.13 : 1,861,137.24 = 387,546.33 : x
  2. Step 2: Convert to fraction form
    1,240,509.13/1,861,137.24 = 387,546.33/x
  3. Step 3: Cross multiply
    1,240,509.13x = 1,861,137.24 × 387,546.33
  4. Step 4: Simplify right side
    1,240,509.13x = 721,276,906,988.33
  5. Step 5: Solve for x
    x = 721,276,906,988.33/1,240,509.13
  6. Step 6: Final answer
    x = 581,436.19

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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.