Home / 1,144,079.78-1,578,849.48-627,881.71

Finding the Fourth Proportional to 1,144,079.78, 1,578,849.48 and 627,881.71

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Solution

The fourth proportional to 1,144,079.78, 1,578,849.48 and 627,881.71 is: 866,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,079.78 : 1,578,849.48 = 627,881.71 : x
  2. Step 2: Convert to fraction form
    1,144,079.78/1,578,849.48 = 627,881.71/x
  3. Step 3: Cross multiply
    1,144,079.78x = 1,578,849.48 × 627,881.71
  4. Step 4: Simplify right side
    1,144,079.78x = 991,330,711,335.01
  5. Step 5: Solve for x
    x = 991,330,711,335.01/1,144,079.78
  6. Step 6: Final answer
    x = 866,487.40

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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.