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Finding the Fourth Proportional to 455,906.20, 683,859.30 and 123,482.20

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Solution

The fourth proportional to 455,906.20, 683,859.30 and 123,482.20 is: 185,223.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,906.20 : 683,859.30 = 123,482.20 : x
  2. Step 2: Convert to fraction form
    455,906.20/683,859.30 = 123,482.20/x
  3. Step 3: Cross multiply
    455,906.20x = 683,859.30 × 123,482.20
  4. Step 4: Simplify right side
    455,906.20x = 84,444,450,854.46
  5. Step 5: Solve for x
    x = 84,444,450,854.46/455,906.20
  6. Step 6: Final answer
    x = 185,223.30

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Double scale
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Similar ratio
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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.