Home / 438,432.30-657,648.45-122,848.20

Finding the Fourth Proportional to 438,432.30, 657,648.45 and 122,848.20

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Solution

The fourth proportional to 438,432.30, 657,648.45 and 122,848.20 is: 184,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,432.30 : 657,648.45 = 122,848.20 : x
  2. Step 2: Convert to fraction form
    438,432.30/657,648.45 = 122,848.20/x
  3. Step 3: Cross multiply
    438,432.30x = 657,648.45 × 122,848.20
  4. Step 4: Simplify right side
    438,432.30x = 80,790,928,315.29
  5. Step 5: Solve for x
    x = 80,790,928,315.29/438,432.30
  6. Step 6: Final answer
    x = 184,272.30

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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.