Home / 880,692.76-1,215,355.92-498,793.36

Finding the Fourth Proportional to 880,692.76, 1,215,355.92 and 498,793.36

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Solution

The fourth proportional to 880,692.76, 1,215,355.92 and 498,793.36 is: 688,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,692.76 : 1,215,355.92 = 498,793.36 : x
  2. Step 2: Convert to fraction form
    880,692.76/1,215,355.92 = 498,793.36/x
  3. Step 3: Cross multiply
    880,692.76x = 1,215,355.92 × 498,793.36
  4. Step 4: Simplify right side
    880,692.76x = 606,211,462,932.69
  5. Step 5: Solve for x
    x = 606,211,462,932.69/880,692.76
  6. Step 6: Final answer
    x = 688,334.79

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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.