Home / 1,126,066.76-1,554,121.79-642,521.06

Finding the Fourth Proportional to 1,126,066.76, 1,554,121.79 and 642,521.06

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Solution

The fourth proportional to 1,126,066.76, 1,554,121.79 and 642,521.06 is: 886,764.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,066.76 : 1,554,121.79 = 642,521.06 : x
  2. Step 2: Convert to fraction form
    1,126,066.76/1,554,121.79 = 642,521.06/x
  3. Step 3: Cross multiply
    1,126,066.76x = 1,554,121.79 × 642,521.06
  4. Step 4: Simplify right side
    1,126,066.76x = 998,555,979,879.90
  5. Step 5: Solve for x
    x = 998,555,979,879.90/1,126,066.76
  6. Step 6: Final answer
    x = 886,764.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.