Home / 438,829.72-658,267.14-123,311.23

Finding the Fourth Proportional to 438,829.72, 658,267.14 and 123,311.23

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Solution

The fourth proportional to 438,829.72, 658,267.14 and 123,311.23 is: 184,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,829.72 : 658,267.14 = 123,311.23 : x
  2. Step 2: Convert to fraction form
    438,829.72/658,267.14 = 123,311.23/x
  3. Step 3: Cross multiply
    438,829.72x = 658,267.14 × 123,311.23
  4. Step 4: Simplify right side
    438,829.72x = 81,171,730,701.98
  5. Step 5: Solve for x
    x = 81,171,730,701.98/438,829.72
  6. Step 6: Final answer
    x = 184,973.18

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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.