Home / 819,795.48-1,229,331.78-370,498.20

Finding the Fourth Proportional to 819,795.48, 1,229,331.78 and 370,498.20

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Solution

The fourth proportional to 819,795.48, 1,229,331.78 and 370,498.20 is: 555,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,795.48 : 1,229,331.78 = 370,498.20 : x
  2. Step 2: Convert to fraction form
    819,795.48/1,229,331.78 = 370,498.20/x
  3. Step 3: Cross multiply
    819,795.48x = 1,229,331.78 × 370,498.20
  4. Step 4: Simplify right side
    819,795.48x = 455,465,211,692.80
  5. Step 5: Solve for x
    x = 455,465,211,692.80/819,795.48
  6. Step 6: Final answer
    x = 555,583.95

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Double scale
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Similar ratio
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1.5x scale

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.