Home / 801,472.78-1,106,032.71-438,919.18

Finding the Fourth Proportional to 801,472.78, 1,106,032.71 and 438,919.18

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Solution

The fourth proportional to 801,472.78, 1,106,032.71 and 438,919.18 is: 605,708.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,472.78 : 1,106,032.71 = 438,919.18 : x
  2. Step 2: Convert to fraction form
    801,472.78/1,106,032.71 = 438,919.18/x
  3. Step 3: Cross multiply
    801,472.78x = 1,106,032.71 × 438,919.18
  4. Step 4: Simplify right side
    801,472.78x = 485,458,970,126.38
  5. Step 5: Solve for x
    x = 485,458,970,126.38/801,472.78
  6. Step 6: Final answer
    x = 605,708.62

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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.