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Finding the Fourth Proportional to 422,999.04, 583,737.12 and 261,822

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Solution

The fourth proportional to 422,999.04, 583,737.12 and 261,822 is: 361,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,999.04 : 583,737.12 = 261,822 : x
  2. Step 2: Convert to fraction form
    422,999.04/583,737.12 = 261,822/x
  3. Step 3: Cross multiply
    422,999.04x = 583,737.12 × 261,822
  4. Step 4: Simplify right side
    422,999.04x = 152,835,220,232.64
  5. Step 5: Solve for x
    x = 152,835,220,232.64/422,999.04
  6. Step 6: Final answer
    x = 361,313.40

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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.