Home / 845,155.28-1,165,642.44-718,250.96

Finding the Fourth Proportional to 845,155.28, 1,165,642.44 and 718,250.96

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Solution

The fourth proportional to 845,155.28, 1,165,642.44 and 718,250.96 is: 990,615.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,155.28 : 1,165,642.44 = 718,250.96 : x
  2. Step 2: Convert to fraction form
    845,155.28/1,165,642.44 = 718,250.96/x
  3. Step 3: Cross multiply
    845,155.28x = 1,165,642.44 × 718,250.96
  4. Step 4: Simplify right side
    845,155.28x = 837,223,801,546.74
  5. Step 5: Solve for x
    x = 837,223,801,546.74/845,155.28
  6. Step 6: Final answer
    x = 990,615.36

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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.