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Finding the Fourth Proportional to 477,258.71, 658,619.17 and 259,469.51

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Solution

The fourth proportional to 477,258.71, 658,619.17 and 259,469.51 is: 358,069.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,258.71 : 658,619.17 = 259,469.51 : x
  2. Step 2: Convert to fraction form
    477,258.71/658,619.17 = 259,469.51/x
  3. Step 3: Cross multiply
    477,258.71x = 658,619.17 × 259,469.51
  4. Step 4: Simplify right side
    477,258.71x = 170,891,589,374.74
  5. Step 5: Solve for x
    x = 170,891,589,374.74/477,258.71
  6. Step 6: Final answer
    x = 358,069.09

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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.