Home / 501,016.95-690,618.02-379,672.47

Finding the Fourth Proportional to 501,016.95, 690,618.02 and 379,672.47

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Solution

The fourth proportional to 501,016.95, 690,618.02 and 379,672.47 is: 523,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,016.95 : 690,618.02 = 379,672.47 : x
  2. Step 2: Convert to fraction form
    501,016.95/690,618.02 = 379,672.47/x
  3. Step 3: Cross multiply
    501,016.95x = 690,618.02 × 379,672.47
  4. Step 4: Simplify right side
    501,016.95x = 262,208,647,581.55
  5. Step 5: Solve for x
    x = 262,208,647,581.55/501,016.95
  6. Step 6: Final answer
    x = 523,352.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.