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Finding the Fourth Proportional to 633,960.38, 874,887 and 347,480.40

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Solution

The fourth proportional to 633,960.38, 874,887 and 347,480.40 is: 479,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,960.38 : 874,887 = 347,480.40 : x
  2. Step 2: Convert to fraction form
    633,960.38/874,887 = 347,480.40/x
  3. Step 3: Cross multiply
    633,960.38x = 874,887 × 347,480.40
  4. Step 4: Simplify right side
    633,960.38x = 304,006,084,714.80
  5. Step 5: Solve for x
    x = 304,006,084,714.80/633,960.38
  6. Step 6: Final answer
    x = 479,534.83

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Half scale
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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.