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Finding the Fourth Proportional to 665,572.82, 998,808.48 and 260,714.82

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Solution

The fourth proportional to 665,572.82, 998,808.48 and 260,714.82 is: 391,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,572.82 : 998,808.48 = 260,714.82 : x
  2. Step 2: Convert to fraction form
    665,572.82/998,808.48 = 260,714.82/x
  3. Step 3: Cross multiply
    665,572.82x = 998,808.48 × 260,714.82
  4. Step 4: Simplify right side
    665,572.82x = 260,404,173,077.67
  5. Step 5: Solve for x
    x = 260,404,173,077.67/665,572.82
  6. Step 6: Final answer
    x = 391,248.21

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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.