Home / 1,443,917-1,988,154.78-1,282,491.56

Finding the Fourth Proportional to 1,443,917, 1,988,154.78 and 1,282,491.56

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Solution

The fourth proportional to 1,443,917, 1,988,154.78 and 1,282,491.56 is: 1,765,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,917 : 1,988,154.78 = 1,282,491.56 : x
  2. Step 2: Convert to fraction form
    1,443,917/1,988,154.78 = 1,282,491.56/x
  3. Step 3: Cross multiply
    1,443,917x = 1,988,154.78 × 1,282,491.56
  4. Step 4: Simplify right side
    1,443,917x = 2,549,791,725,323.66
  5. Step 5: Solve for x
    x = 2,549,791,725,323.66/1,443,917
  6. Step 6: Final answer
    x = 1,765,885.25

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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.