Home / 579,521.16-799,787.07-321,481.30

Finding the Fourth Proportional to 579,521.16, 799,787.07 and 321,481.30

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Solution

The fourth proportional to 579,521.16, 799,787.07 and 321,481.30 is: 443,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,521.16 : 799,787.07 = 321,481.30 : x
  2. Step 2: Convert to fraction form
    579,521.16/799,787.07 = 321,481.30/x
  3. Step 3: Cross multiply
    579,521.16x = 799,787.07 × 321,481.30
  4. Step 4: Simplify right side
    579,521.16x = 257,116,586,986.79
  5. Step 5: Solve for x
    x = 257,116,586,986.79/579,521.16
  6. Step 6: Final answer
    x = 443,670.75

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Double scale
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1.5x scale

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.