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Finding the Fourth Proportional to 579,737.70, 869,606.55 and 205,712.10

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Solution

The fourth proportional to 579,737.70, 869,606.55 and 205,712.10 is: 308,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,737.70 : 869,606.55 = 205,712.10 : x
  2. Step 2: Convert to fraction form
    579,737.70/869,606.55 = 205,712.10/x
  3. Step 3: Cross multiply
    579,737.70x = 869,606.55 × 205,712.10
  4. Step 4: Simplify right side
    579,737.70x = 178,888,589,574.26
  5. Step 5: Solve for x
    x = 178,888,589,574.26/579,737.70
  6. Step 6: Final answer
    x = 308,568.15

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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.