Home / 667,920.30-1,001,880.45-247,360.20

Finding the Fourth Proportional to 667,920.30, 1,001,880.45 and 247,360.20

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Solution

The fourth proportional to 667,920.30, 1,001,880.45 and 247,360.20 is: 371,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,920.30 : 1,001,880.45 = 247,360.20 : x
  2. Step 2: Convert to fraction form
    667,920.30/1,001,880.45 = 247,360.20/x
  3. Step 3: Cross multiply
    667,920.30x = 1,001,880.45 × 247,360.20
  4. Step 4: Simplify right side
    667,920.30x = 247,825,348,488.09
  5. Step 5: Solve for x
    x = 247,825,348,488.09/667,920.30
  6. Step 6: Final answer
    x = 371,040.30

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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.