Home / 1,230,257.70-1,845,386.55-663,387.30

Finding the Fourth Proportional to 1,230,257.70, 1,845,386.55 and 663,387.30

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Solution

The fourth proportional to 1,230,257.70, 1,845,386.55 and 663,387.30 is: 995,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,257.70 : 1,845,386.55 = 663,387.30 : x
  2. Step 2: Convert to fraction form
    1,230,257.70/1,845,386.55 = 663,387.30/x
  3. Step 3: Cross multiply
    1,230,257.70x = 1,845,386.55 × 663,387.30
  4. Step 4: Simplify right side
    1,230,257.70x = 1,224,206,000,860.82
  5. Step 5: Solve for x
    x = 1,224,206,000,860.82/1,230,257.70
  6. Step 6: Final answer
    x = 995,080.95

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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.