Home / 438,419.24-657,636.15-122,864.30

Finding the Fourth Proportional to 438,419.24, 657,636.15 and 122,864.30

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Solution

The fourth proportional to 438,419.24, 657,636.15 and 122,864.30 is: 184,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,419.24 : 657,636.15 = 122,864.30 : x
  2. Step 2: Convert to fraction form
    438,419.24/657,636.15 = 122,864.30/x
  3. Step 3: Cross multiply
    438,419.24x = 657,636.15 × 122,864.30
  4. Step 4: Simplify right side
    438,419.24x = 80,800,005,224.45
  5. Step 5: Solve for x
    x = 80,800,005,224.45/438,419.24
  6. Step 6: Final answer
    x = 184,298.49

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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.