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Finding the Fourth Proportional to 561,577.32, 842,522.94 and 324,487.08

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Solution

The fourth proportional to 561,577.32, 842,522.94 and 324,487.08 is: 486,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,577.32 : 842,522.94 = 324,487.08 : x
  2. Step 2: Convert to fraction form
    561,577.32/842,522.94 = 324,487.08/x
  3. Step 3: Cross multiply
    561,577.32x = 842,522.94 × 324,487.08
  4. Step 4: Simplify right side
    561,577.32x = 273,387,808,633.62
  5. Step 5: Solve for x
    x = 273,387,808,633.62/561,577.32
  6. Step 6: Final answer
    x = 486,821.31

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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.