Home / 749,081.80-1,123,622.70-329,177.80

Finding the Fourth Proportional to 749,081.80, 1,123,622.70 and 329,177.80

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Solution

The fourth proportional to 749,081.80, 1,123,622.70 and 329,177.80 is: 493,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,081.80 : 1,123,622.70 = 329,177.80 : x
  2. Step 2: Convert to fraction form
    749,081.80/1,123,622.70 = 329,177.80/x
  3. Step 3: Cross multiply
    749,081.80x = 1,123,622.70 × 329,177.80
  4. Step 4: Simplify right side
    749,081.80x = 369,871,648,416.06
  5. Step 5: Solve for x
    x = 369,871,648,416.06/749,081.80
  6. Step 6: Final answer
    x = 493,766.70

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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.