Home / 1,642,915.28-2,266,276.92-989,086.52

Finding the Fourth Proportional to 1,642,915.28, 2,266,276.92 and 989,086.52

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Solution

The fourth proportional to 1,642,915.28, 2,266,276.92 and 989,086.52 is: 1,364,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,915.28 : 2,266,276.92 = 989,086.52 : x
  2. Step 2: Convert to fraction form
    1,642,915.28/2,266,276.92 = 989,086.52/x
  3. Step 3: Cross multiply
    1,642,915.28x = 2,266,276.92 × 989,086.52
  4. Step 4: Simplify right side
    1,642,915.28x = 2,241,543,952,159.12
  5. Step 5: Solve for x
    x = 2,241,543,952,159.12/1,642,915.28
  6. Step 6: Final answer
    x = 1,364,369.78

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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.