Home / 750,072.21-1,125,081.65-300,672.41

Finding the Fourth Proportional to 750,072.21, 1,125,081.65 and 300,672.41

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Solution

The fourth proportional to 750,072.21, 1,125,081.65 and 300,672.41 is: 450,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,072.21 : 1,125,081.65 = 300,672.41 : x
  2. Step 2: Convert to fraction form
    750,072.21/1,125,081.65 = 300,672.41/x
  3. Step 3: Cross multiply
    750,072.21x = 1,125,081.65 × 300,672.41
  4. Step 4: Simplify right side
    750,072.21x = 338,281,004,023.51
  5. Step 5: Solve for x
    x = 338,281,004,023.51/750,072.21
  6. Step 6: Final answer
    x = 450,997.92

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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.