Home / 1,121,915.28-1,548,242.94-612,618.12

Finding the Fourth Proportional to 1,121,915.28, 1,548,242.94 and 612,618.12

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Solution

The fourth proportional to 1,121,915.28, 1,548,242.94 and 612,618.12 is: 845,412.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,915.28 : 1,548,242.94 = 612,618.12 : x
  2. Step 2: Convert to fraction form
    1,121,915.28/1,548,242.94 = 612,618.12/x
  3. Step 3: Cross multiply
    1,121,915.28x = 1,548,242.94 × 612,618.12
  4. Step 4: Simplify right side
    1,121,915.28x = 948,481,679,206.07
  5. Step 5: Solve for x
    x = 948,481,679,206.07/1,121,915.28
  6. Step 6: Final answer
    x = 845,412.93

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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.