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Finding the Fourth Proportional to 456,805.97, 630,383.11 and 252,856.85

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Solution

The fourth proportional to 456,805.97, 630,383.11 and 252,856.85 is: 348,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,805.97 : 630,383.11 = 252,856.85 : x
  2. Step 2: Convert to fraction form
    456,805.97/630,383.11 = 252,856.85/x
  3. Step 3: Cross multiply
    456,805.97x = 630,383.11 × 252,856.85
  4. Step 4: Simplify right side
    456,805.97x = 159,396,683,703.75
  5. Step 5: Solve for x
    x = 159,396,683,703.75/456,805.97
  6. Step 6: Final answer
    x = 348,937.39

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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.