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Finding the Fourth Proportional to 579,158.34, 867,980.90 and 322,980.68

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Solution

The fourth proportional to 579,158.34, 867,980.90 and 322,980.68 is: 484,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,158.34 : 867,980.90 = 322,980.68 : x
  2. Step 2: Convert to fraction form
    579,158.34/867,980.90 = 322,980.68/x
  3. Step 3: Cross multiply
    579,158.34x = 867,980.90 × 322,980.68
  4. Step 4: Simplify right side
    579,158.34x = 280,341,061,309.01
  5. Step 5: Solve for x
    x = 280,341,061,309.01/579,158.34
  6. Step 6: Final answer
    x = 484,049.08

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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.