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Finding the Fourth Proportional to 408,864.88, 563,994.38 and 265,720.26

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Solution

The fourth proportional to 408,864.88, 563,994.38 and 265,720.26 is: 366,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,864.88 : 563,994.38 = 265,720.26 : x
  2. Step 2: Convert to fraction form
    408,864.88/563,994.38 = 265,720.26/x
  3. Step 3: Cross multiply
    408,864.88x = 563,994.38 × 265,720.26
  4. Step 4: Simplify right side
    408,864.88x = 149,864,733,292.14
  5. Step 5: Solve for x
    x = 149,864,733,292.14/408,864.88
  6. Step 6: Final answer
    x = 366,538.53

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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.