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Finding the Fourth Proportional to 783,600.88, 1,080,212.88 and 611,325.04

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Solution

The fourth proportional to 783,600.88, 1,080,212.88 and 611,325.04 is: 842,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,600.88 : 1,080,212.88 = 611,325.04 : x
  2. Step 2: Convert to fraction form
    783,600.88/1,080,212.88 = 611,325.04/x
  3. Step 3: Cross multiply
    783,600.88x = 1,080,212.88 × 611,325.04
  4. Step 4: Simplify right side
    783,600.88x = 660,361,182,074.52
  5. Step 5: Solve for x
    x = 660,361,182,074.52/783,600.88
  6. Step 6: Final answer
    x = 842,726.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.