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Finding the Fourth Proportional to 393,026.70, 589,540.05 and 351,036.30

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Solution

The fourth proportional to 393,026.70, 589,540.05 and 351,036.30 is: 526,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,026.70 : 589,540.05 = 351,036.30 : x
  2. Step 2: Convert to fraction form
    393,026.70/589,540.05 = 351,036.30/x
  3. Step 3: Cross multiply
    393,026.70x = 589,540.05 × 351,036.30
  4. Step 4: Simplify right side
    393,026.70x = 206,949,957,853.82
  5. Step 5: Solve for x
    x = 206,949,957,853.82/393,026.70
  6. Step 6: Final answer
    x = 526,554.45

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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.