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Finding the Fourth Proportional to 632,003.40, 948,005.10 and 276,640.20

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Solution

The fourth proportional to 632,003.40, 948,005.10 and 276,640.20 is: 414,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,003.40 : 948,005.10 = 276,640.20 : x
  2. Step 2: Convert to fraction form
    632,003.40/948,005.10 = 276,640.20/x
  3. Step 3: Cross multiply
    632,003.40x = 948,005.10 × 276,640.20
  4. Step 4: Simplify right side
    632,003.40x = 262,256,320,465.02
  5. Step 5: Solve for x
    x = 262,256,320,465.02/632,003.40
  6. Step 6: Final answer
    x = 414,960.30

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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.