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Finding the Fourth Proportional to 464,513.38, 640,876.80 and 270,877.21

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Solution

The fourth proportional to 464,513.38, 640,876.80 and 270,877.21 is: 373,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,513.38 : 640,876.80 = 270,877.21 : x
  2. Step 2: Convert to fraction form
    464,513.38/640,876.80 = 270,877.21/x
  3. Step 3: Cross multiply
    464,513.38x = 640,876.80 × 270,877.21
  4. Step 4: Simplify right side
    464,513.38x = 173,598,919,537.73
  5. Step 5: Solve for x
    x = 173,598,919,537.73/464,513.38
  6. Step 6: Final answer
    x = 373,722.11

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1.5x scale

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.