Home / 749,065.70-1,123,598.55-329,161.70

Finding the Fourth Proportional to 749,065.70, 1,123,598.55 and 329,161.70

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Solution

The fourth proportional to 749,065.70, 1,123,598.55 and 329,161.70 is: 493,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,065.70 : 1,123,598.55 = 329,161.70 : x
  2. Step 2: Convert to fraction form
    749,065.70/1,123,598.55 = 329,161.70/x
  3. Step 3: Cross multiply
    749,065.70x = 1,123,598.55 × 329,161.70
  4. Step 4: Simplify right side
    749,065.70x = 369,845,608,835.54
  5. Step 5: Solve for x
    x = 369,845,608,835.54/749,065.70
  6. Step 6: Final answer
    x = 493,742.55

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Half scale
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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.