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Finding the Fourth Proportional to 661,076.92, 912,260.46 and 359,264.44

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Solution

The fourth proportional to 661,076.92, 912,260.46 and 359,264.44 is: 495,770.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,076.92 : 912,260.46 = 359,264.44 : x
  2. Step 2: Convert to fraction form
    661,076.92/912,260.46 = 359,264.44/x
  3. Step 3: Cross multiply
    661,076.92x = 912,260.46 × 359,264.44
  4. Step 4: Simplify right side
    661,076.92x = 327,742,743,296.04
  5. Step 5: Solve for x
    x = 327,742,743,296.04/661,076.92
  6. Step 6: Final answer
    x = 495,770.97

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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.