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Finding the Fourth Proportional to 449,189.64, 672,710.32 and 259,073.63

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Solution

The fourth proportional to 449,189.64, 672,710.32 and 259,073.63 is: 387,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,189.64 : 672,710.32 = 259,073.63 : x
  2. Step 2: Convert to fraction form
    449,189.64/672,710.32 = 259,073.63/x
  3. Step 3: Cross multiply
    449,189.64x = 672,710.32 × 259,073.63
  4. Step 4: Simplify right side
    449,189.64x = 174,281,502,566.53
  5. Step 5: Solve for x
    x = 174,281,502,566.53/449,189.64
  6. Step 6: Final answer
    x = 387,990.92

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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.