Home / 645,281.78-968,119.60-329,960.18

Finding the Fourth Proportional to 645,281.78, 968,119.60 and 329,960.18

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Solution

The fourth proportional to 645,281.78, 968,119.60 and 329,960.18 is: 495,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,281.78 : 968,119.60 = 329,960.18 : x
  2. Step 2: Convert to fraction form
    645,281.78/968,119.60 = 329,960.18/x
  3. Step 3: Cross multiply
    645,281.78x = 968,119.60 × 329,960.18
  4. Step 4: Simplify right side
    645,281.78x = 319,440,917,477.53
  5. Step 5: Solve for x
    x = 319,440,917,477.53/645,281.78
  6. Step 6: Final answer
    x = 495,040.97

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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.