Home / 645,901.98-968,951.39-330,252.27

Finding the Fourth Proportional to 645,901.98, 968,951.39 and 330,252.27

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Solution

The fourth proportional to 645,901.98, 968,951.39 and 330,252.27 is: 495,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,901.98 : 968,951.39 = 330,252.27 : x
  2. Step 2: Convert to fraction form
    645,901.98/968,951.39 = 330,252.27/x
  3. Step 3: Cross multiply
    645,901.98x = 968,951.39 × 330,252.27
  4. Step 4: Simplify right side
    645,901.98x = 319,998,394,415.89
  5. Step 5: Solve for x
    x = 319,998,394,415.89/645,901.98
  6. Step 6: Final answer
    x = 495,428.72

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Double scale
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Similar ratio
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1.5x scale

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.