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Finding the Fourth Proportional to 902.07, 1,244.77 and 508.82

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Solution

The fourth proportional to 902.07, 1,244.77 and 508.82 is: 702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.07 : 1,244.77 = 508.82 : x
  2. Step 2: Convert to fraction form
    902.07/1,244.77 = 508.82/x
  3. Step 3: Cross multiply
    902.07x = 1,244.77 × 508.82
  4. Step 4: Simplify right side
    902.07x = 633,356.38
  5. Step 5: Solve for x
    x = 633,356.38/902.07
  6. Step 6: Final answer
    x = 702.11

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Double scale
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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.