Home / 1,109,336.16-1,660,738.32-687,254.88

Finding the Fourth Proportional to 1,109,336.16, 1,660,738.32 and 687,254.88

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Solution

The fourth proportional to 1,109,336.16, 1,660,738.32 and 687,254.88 is: 1,028,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,336.16 : 1,660,738.32 = 687,254.88 : x
  2. Step 2: Convert to fraction form
    1,109,336.16/1,660,738.32 = 687,254.88/x
  3. Step 3: Cross multiply
    1,109,336.16x = 1,660,738.32 × 687,254.88
  4. Step 4: Simplify right side
    1,109,336.16x = 1,141,350,514,823.00
  5. Step 5: Solve for x
    x = 1,141,350,514,823.00/1,109,336.16
  6. Step 6: Final answer
    x = 1,028,859.02

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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.