Home / 1,144,147.43-1,578,819.08-678,921.14

Finding the Fourth Proportional to 1,144,147.43, 1,578,819.08 and 678,921.14

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Solution

The fourth proportional to 1,144,147.43, 1,578,819.08 and 678,921.14 is: 936,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,147.43 : 1,578,819.08 = 678,921.14 : x
  2. Step 2: Convert to fraction form
    1,144,147.43/1,578,819.08 = 678,921.14/x
  3. Step 3: Cross multiply
    1,144,147.43x = 1,578,819.08 × 678,921.14
  4. Step 4: Simplify right side
    1,144,147.43x = 1,071,893,655,291.70
  5. Step 5: Solve for x
    x = 1,071,893,655,291.70/1,144,147.43
  6. Step 6: Final answer
    x = 936,849.24

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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.