Home / 1,605,382.70-2,215,527.64-889,990.70

Finding the Fourth Proportional to 1,605,382.70, 2,215,527.64 and 889,990.70

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Solution

The fourth proportional to 1,605,382.70, 2,215,527.64 and 889,990.70 is: 1,228,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,382.70 : 2,215,527.64 = 889,990.70 : x
  2. Step 2: Convert to fraction form
    1,605,382.70/2,215,527.64 = 889,990.70/x
  3. Step 3: Cross multiply
    1,605,382.70x = 2,215,527.64 × 889,990.70
  4. Step 4: Simplify right side
    1,605,382.70x = 1,971,798,995,192.95
  5. Step 5: Solve for x
    x = 1,971,798,995,192.95/1,605,382.70
  6. Step 6: Final answer
    x = 1,228,242.33

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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.