Home / 738,471.69-1,107,609.10-205,948.12

Finding the Fourth Proportional to 738,471.69, 1,107,609.10 and 205,948.12

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Solution

The fourth proportional to 738,471.69, 1,107,609.10 and 205,948.12 is: 308,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,471.69 : 1,107,609.10 = 205,948.12 : x
  2. Step 2: Convert to fraction form
    738,471.69/1,107,609.10 = 205,948.12/x
  3. Step 3: Cross multiply
    738,471.69x = 1,107,609.10 × 205,948.12
  4. Step 4: Simplify right side
    738,471.69x = 228,110,011,839.89
  5. Step 5: Solve for x
    x = 228,110,011,839.89/738,471.69
  6. Step 6: Final answer
    x = 308,894.73

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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.