Home / 749,345.60-1,123,492.80-275,969.60

Finding the Fourth Proportional to 749,345.60, 1,123,492.80 and 275,969.60

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Solution

The fourth proportional to 749,345.60, 1,123,492.80 and 275,969.60 is: 413,760.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,345.60 : 1,123,492.80 = 275,969.60 : x
  2. Step 2: Convert to fraction form
    749,345.60/1,123,492.80 = 275,969.60/x
  3. Step 3: Cross multiply
    749,345.60x = 1,123,492.80 × 275,969.60
  4. Step 4: Simplify right side
    749,345.60x = 310,049,858,618.88
  5. Step 5: Solve for x
    x = 310,049,858,618.88/749,345.60
  6. Step 6: Final answer
    x = 413,760.83

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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.