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Finding the Fourth Proportional to 665,226.89, 998,550.77 and 286,335.29

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Solution

The fourth proportional to 665,226.89, 998,550.77 and 286,335.29 is: 429,808.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,226.89 : 998,550.77 = 286,335.29 : x
  2. Step 2: Convert to fraction form
    665,226.89/998,550.77 = 286,335.29/x
  3. Step 3: Cross multiply
    665,226.89x = 998,550.77 × 286,335.29
  4. Step 4: Simplify right side
    665,226.89x = 285,920,317,883.24
  5. Step 5: Solve for x
    x = 285,920,317,883.24/665,226.89
  6. Step 6: Final answer
    x = 429,808.72

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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.