Home / 908,728.76-1,253,996.96-500,749.38

Finding the Fourth Proportional to 908,728.76, 1,253,996.96 and 500,749.38

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Solution

The fourth proportional to 908,728.76, 1,253,996.96 and 500,749.38 is: 691,007.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,728.76 : 1,253,996.96 = 500,749.38 : x
  2. Step 2: Convert to fraction form
    908,728.76/1,253,996.96 = 500,749.38/x
  3. Step 3: Cross multiply
    908,728.76x = 1,253,996.96 × 500,749.38
  4. Step 4: Simplify right side
    908,728.76x = 627,938,197,738.14
  5. Step 5: Solve for x
    x = 627,938,197,738.14/908,728.76
  6. Step 6: Final answer
    x = 691,007.29

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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.