Home / 438,826.72-658,262.64-123,308.23

Finding the Fourth Proportional to 438,826.72, 658,262.64 and 123,308.23

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Solution

The fourth proportional to 438,826.72, 658,262.64 and 123,308.23 is: 184,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,826.72 : 658,262.64 = 123,308.23 : x
  2. Step 2: Convert to fraction form
    438,826.72/658,262.64 = 123,308.23/x
  3. Step 3: Cross multiply
    438,826.72x = 658,262.64 × 123,308.23
  4. Step 4: Simplify right side
    438,826.72x = 81,169,201,013.53
  5. Step 5: Solve for x
    x = 81,169,201,013.53/438,826.72
  6. Step 6: Final answer
    x = 184,968.68

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1.5x scale

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.