Home / 1,170,040.20-1,755,060.30-638,599.20

Finding the Fourth Proportional to 1,170,040.20, 1,755,060.30 and 638,599.20

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Solution

The fourth proportional to 1,170,040.20, 1,755,060.30 and 638,599.20 is: 957,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,040.20 : 1,755,060.30 = 638,599.20 : x
  2. Step 2: Convert to fraction form
    1,170,040.20/1,755,060.30 = 638,599.20/x
  3. Step 3: Cross multiply
    1,170,040.20x = 1,755,060.30 × 638,599.20
  4. Step 4: Simplify right side
    1,170,040.20x = 1,120,780,103,531.76
  5. Step 5: Solve for x
    x = 1,120,780,103,531.76/1,170,040.20
  6. Step 6: Final answer
    x = 957,898.80

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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.