Home / 818,548.30-1,121,416.27-787,867.04

Finding the Fourth Proportional to 818,548.30, 1,121,416.27 and 787,867.04

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Solution

The fourth proportional to 818,548.30, 1,121,416.27 and 787,867.04 is: 1,079,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,548.30 : 1,121,416.27 = 787,867.04 : x
  2. Step 2: Convert to fraction form
    818,548.30/1,121,416.27 = 787,867.04/x
  3. Step 3: Cross multiply
    818,548.30x = 1,121,416.27 × 787,867.04
  4. Step 4: Simplify right side
    818,548.30x = 883,526,913,313.41
  5. Step 5: Solve for x
    x = 883,526,913,313.41/818,548.30
  6. Step 6: Final answer
    x = 1,079,382.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.