Home / 753,493.70-1,131,115.35-433,900.10

Finding the Fourth Proportional to 753,493.70, 1,131,115.35 and 433,900.10

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Solution

The fourth proportional to 753,493.70, 1,131,115.35 and 433,900.10 is: 651,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,493.70 : 1,131,115.35 = 433,900.10 : x
  2. Step 2: Convert to fraction form
    753,493.70/1,131,115.35 = 433,900.10/x
  3. Step 3: Cross multiply
    753,493.70x = 1,131,115.35 × 433,900.10
  4. Step 4: Simplify right side
    753,493.70x = 490,791,063,476.54
  5. Step 5: Solve for x
    x = 490,791,063,476.54/753,493.70
  6. Step 6: Final answer
    x = 651,353.90

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Double scale
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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.