Home / 1,131,663.74-1,561,421.85-718,050.02

Finding the Fourth Proportional to 1,131,663.74, 1,561,421.85 and 718,050.02

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Solution

The fourth proportional to 1,131,663.74, 1,561,421.85 and 718,050.02 is: 990,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,663.74 : 1,561,421.85 = 718,050.02 : x
  2. Step 2: Convert to fraction form
    1,131,663.74/1,561,421.85 = 718,050.02/x
  3. Step 3: Cross multiply
    1,131,663.74x = 1,561,421.85 × 718,050.02
  4. Step 4: Simplify right side
    1,131,663.74x = 1,121,178,990,620.94
  5. Step 5: Solve for x
    x = 1,121,178,990,620.94/1,131,663.74
  6. Step 6: Final answer
    x = 990,735.10

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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.