Home / 438,628.62-657,966.10-123,110.12

Finding the Fourth Proportional to 438,628.62, 657,966.10 and 123,110.12

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Solution

The fourth proportional to 438,628.62, 657,966.10 and 123,110.12 is: 184,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,628.62 : 657,966.10 = 123,110.12 : x
  2. Step 2: Convert to fraction form
    438,628.62/657,966.10 = 123,110.12/x
  3. Step 3: Cross multiply
    438,628.62x = 657,966.10 × 123,110.12
  4. Step 4: Simplify right side
    438,628.62x = 81,002,285,526.93
  5. Step 5: Solve for x
    x = 81,002,285,526.93/438,628.62
  6. Step 6: Final answer
    x = 184,671.68

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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.