Home / 1,107,645.81-1,664,936.87-730,987.04

Finding the Fourth Proportional to 1,107,645.81, 1,664,936.87 and 730,987.04

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Solution

The fourth proportional to 1,107,645.81, 1,664,936.87 and 730,987.04 is: 1,098,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,645.81 : 1,664,936.87 = 730,987.04 : x
  2. Step 2: Convert to fraction form
    1,107,645.81/1,664,936.87 = 730,987.04/x
  3. Step 3: Cross multiply
    1,107,645.81x = 1,664,936.87 × 730,987.04
  4. Step 4: Simplify right side
    1,107,645.81x = 1,217,047,262,408.55
  5. Step 5: Solve for x
    x = 1,217,047,262,408.55/1,107,645.81
  6. Step 6: Final answer
    x = 1,098,769.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.