Home / 1,127,119.16-1,554,517.49-990,861.77

Finding the Fourth Proportional to 1,127,119.16, 1,554,517.49 and 990,861.77

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Solution

The fourth proportional to 1,127,119.16, 1,554,517.49 and 990,861.77 is: 1,366,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,119.16 : 1,554,517.49 = 990,861.77 : x
  2. Step 2: Convert to fraction form
    1,127,119.16/1,554,517.49 = 990,861.77/x
  3. Step 3: Cross multiply
    1,127,119.16x = 1,554,517.49 × 990,861.77
  4. Step 4: Simplify right side
    1,127,119.16x = 1,540,311,938,910.46
  5. Step 5: Solve for x
    x = 1,540,311,938,910.46/1,127,119.16
  6. Step 6: Final answer
    x = 1,366,591.93

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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.