Home / 645,277.78-968,113.59-329,956.18

Finding the Fourth Proportional to 645,277.78, 968,113.59 and 329,956.18

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Solution

The fourth proportional to 645,277.78, 968,113.59 and 329,956.18 is: 495,034.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,277.78 : 968,113.59 = 329,956.18 : x
  2. Step 2: Convert to fraction form
    645,277.78/968,113.59 = 329,956.18/x
  3. Step 3: Cross multiply
    645,277.78x = 968,113.59 × 329,956.18
  4. Step 4: Simplify right side
    645,277.78x = 319,435,061,962.49
  5. Step 5: Solve for x
    x = 319,435,061,962.49/645,277.78
  6. Step 6: Final answer
    x = 495,034.96

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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.