Home / 438,894.84-658,240.02-123,382.20

Finding the Fourth Proportional to 438,894.84, 658,240.02 and 123,382.20

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Solution

The fourth proportional to 438,894.84, 658,240.02 and 123,382.20 is: 185,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,894.84 : 658,240.02 = 123,382.20 : x
  2. Step 2: Convert to fraction form
    438,894.84/658,240.02 = 123,382.20/x
  3. Step 3: Cross multiply
    438,894.84x = 658,240.02 × 123,382.20
  4. Step 4: Simplify right side
    438,894.84x = 81,215,101,795.64
  5. Step 5: Solve for x
    x = 81,215,101,795.64/438,894.84
  6. Step 6: Final answer
    x = 185,044.56

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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.