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Finding the Fourth Proportional to 589,620.70, 885,087.15 and 323,900.20

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Solution

The fourth proportional to 589,620.70, 885,087.15 and 323,900.20 is: 486,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,620.70 : 885,087.15 = 323,900.20 : x
  2. Step 2: Convert to fraction form
    589,620.70/885,087.15 = 323,900.20/x
  3. Step 3: Cross multiply
    589,620.70x = 885,087.15 × 323,900.20
  4. Step 4: Simplify right side
    589,620.70x = 286,679,904,902.43
  5. Step 5: Solve for x
    x = 286,679,904,902.43/589,620.70
  6. Step 6: Final answer
    x = 486,210.72

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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.