Home / 438,829.72-658,267.16-123,311.24

Finding the Fourth Proportional to 438,829.72, 658,267.16 and 123,311.24

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Solution

The fourth proportional to 438,829.72, 658,267.16 and 123,311.24 is: 184,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,829.72 : 658,267.16 = 123,311.24 : x
  2. Step 2: Convert to fraction form
    438,829.72/658,267.16 = 123,311.24/x
  3. Step 3: Cross multiply
    438,829.72x = 658,267.16 × 123,311.24
  4. Step 4: Simplify right side
    438,829.72x = 81,171,739,750.88
  5. Step 5: Solve for x
    x = 81,171,739,750.88/438,829.72
  6. Step 6: Final answer
    x = 184,973.20

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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.