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Finding the Fourth Proportional to 579,900.87, 869,642.73 and 200,718.81

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Solution

The fourth proportional to 579,900.87, 869,642.73 and 200,718.81 is: 301,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,900.87 : 869,642.73 = 200,718.81 : x
  2. Step 2: Convert to fraction form
    579,900.87/869,642.73 = 200,718.81/x
  3. Step 3: Cross multiply
    579,900.87x = 869,642.73 × 200,718.81
  4. Step 4: Simplify right side
    579,900.87x = 174,553,653,890.75
  5. Step 5: Solve for x
    x = 174,553,653,890.75/579,900.87
  6. Step 6: Final answer
    x = 301,006.02

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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.