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Finding the Fourth Proportional to 547,767.30, 821,650.95 and 336,720.90

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Solution

The fourth proportional to 547,767.30, 821,650.95 and 336,720.90 is: 505,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,767.30 : 821,650.95 = 336,720.90 : x
  2. Step 2: Convert to fraction form
    547,767.30/821,650.95 = 336,720.90/x
  3. Step 3: Cross multiply
    547,767.30x = 821,650.95 × 336,720.90
  4. Step 4: Simplify right side
    547,767.30x = 276,667,047,369.86
  5. Step 5: Solve for x
    x = 276,667,047,369.86/547,767.30
  6. Step 6: Final answer
    x = 505,081.35

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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.