Home / 691,142.45-1,036,713.68-292,233.65

Finding the Fourth Proportional to 691,142.45, 1,036,713.68 and 292,233.65

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Solution

The fourth proportional to 691,142.45, 1,036,713.68 and 292,233.65 is: 438,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,142.45 : 1,036,713.68 = 292,233.65 : x
  2. Step 2: Convert to fraction form
    691,142.45/1,036,713.68 = 292,233.65/x
  3. Step 3: Cross multiply
    691,142.45x = 1,036,713.68 × 292,233.65
  4. Step 4: Simplify right side
    691,142.45x = 302,962,622,711.33
  5. Step 5: Solve for x
    x = 302,962,622,711.33/691,142.45
  6. Step 6: Final answer
    x = 438,350.48

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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.