Home / 2,088,456.40-3,129,695.70-1,187,995.60

Finding the Fourth Proportional to 2,088,456.40, 3,129,695.70 and 1,187,995.60

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Solution

The fourth proportional to 2,088,456.40, 3,129,695.70 and 1,187,995.60 is: 1,780,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088,456.40 : 3,129,695.70 = 1,187,995.60 : x
  2. Step 2: Convert to fraction form
    2,088,456.40/3,129,695.70 = 1,187,995.60/x
  3. Step 3: Cross multiply
    2,088,456.40x = 3,129,695.70 × 1,187,995.60
  4. Step 4: Simplify right side
    2,088,456.40x = 3,718,064,720,938.92
  5. Step 5: Solve for x
    x = 3,718,064,720,938.92/2,088,456.40
  6. Step 6: Final answer
    x = 1,780,293.20

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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.