Home / 1,240,512.13-1,861,141.74-387,549.33

Finding the Fourth Proportional to 1,240,512.13, 1,861,141.74 and 387,549.33

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Solution

The fourth proportional to 1,240,512.13, 1,861,141.74 and 387,549.33 is: 581,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,512.13 : 1,861,141.74 = 387,549.33 : x
  2. Step 2: Convert to fraction form
    1,240,512.13/1,861,141.74 = 387,549.33/x
  3. Step 3: Cross multiply
    1,240,512.13x = 1,861,141.74 × 387,549.33
  4. Step 4: Simplify right side
    1,240,512.13x = 721,284,234,372.03
  5. Step 5: Solve for x
    x = 721,284,234,372.03/1,240,512.13
  6. Step 6: Final answer
    x = 581,440.69

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1.5x scale

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.