Home / 438,830.72-658,268.66-123,312.24

Finding the Fourth Proportional to 438,830.72, 658,268.66 and 123,312.24

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Solution

The fourth proportional to 438,830.72, 658,268.66 and 123,312.24 is: 184,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,830.72 : 658,268.66 = 123,312.24 : x
  2. Step 2: Convert to fraction form
    438,830.72/658,268.66 = 123,312.24/x
  3. Step 3: Cross multiply
    438,830.72x = 658,268.66 × 123,312.24
  4. Step 4: Simplify right side
    438,830.72x = 81,172,582,986.40
  5. Step 5: Solve for x
    x = 81,172,582,986.40/438,830.72
  6. Step 6: Final answer
    x = 184,974.71

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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.