Home / 540,635.20-746,037.30-298,920.76

Finding the Fourth Proportional to 540,635.20, 746,037.30 and 298,920.76

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Solution

The fourth proportional to 540,635.20, 746,037.30 and 298,920.76 is: 412,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,635.20 : 746,037.30 = 298,920.76 : x
  2. Step 2: Convert to fraction form
    540,635.20/746,037.30 = 298,920.76/x
  3. Step 3: Cross multiply
    540,635.20x = 746,037.30 × 298,920.76
  4. Step 4: Simplify right side
    540,635.20x = 223,006,036,704.35
  5. Step 5: Solve for x
    x = 223,006,036,704.35/540,635.20
  6. Step 6: Final answer
    x = 412,488.93

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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.