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Finding the Fourth Proportional to 455,423.91, 683,134.43 and 122,999.91

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Solution

The fourth proportional to 455,423.91, 683,134.43 and 122,999.91 is: 184,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,423.91 : 683,134.43 = 122,999.91 : x
  2. Step 2: Convert to fraction form
    455,423.91/683,134.43 = 122,999.91/x
  3. Step 3: Cross multiply
    455,423.91x = 683,134.43 × 122,999.91
  4. Step 4: Simplify right side
    455,423.91x = 84,025,472,792.90
  5. Step 5: Solve for x
    x = 84,025,472,792.90/455,423.91
  6. Step 6: Final answer
    x = 184,499.48

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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.