Home / 449,557.20-674,667.60-212,899.48

Finding the Fourth Proportional to 449,557.20, 674,667.60 and 212,899.48

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Solution

The fourth proportional to 449,557.20, 674,667.60 and 212,899.48 is: 319,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,557.20 : 674,667.60 = 212,899.48 : x
  2. Step 2: Convert to fraction form
    449,557.20/674,667.60 = 212,899.48/x
  3. Step 3: Cross multiply
    449,557.20x = 674,667.60 × 212,899.48
  4. Step 4: Simplify right side
    449,557.20x = 143,636,381,212.85
  5. Step 5: Solve for x
    x = 143,636,381,212.85/449,557.20
  6. Step 6: Final answer
    x = 319,506.35

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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.