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Finding the Fourth Proportional to 723,230.72, 998,159.84 and 447,676.92

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Solution

The fourth proportional to 723,230.72, 998,159.84 and 447,676.92 is: 617,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,230.72 : 998,159.84 = 447,676.92 : x
  2. Step 2: Convert to fraction form
    723,230.72/998,159.84 = 447,676.92/x
  3. Step 3: Cross multiply
    723,230.72x = 998,159.84 × 447,676.92
  4. Step 4: Simplify right side
    723,230.72x = 446,853,122,838.89
  5. Step 5: Solve for x
    x = 446,853,122,838.89/723,230.72
  6. Step 6: Final answer
    x = 617,856.94

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.