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Finding the Fourth Proportional to 586,145.69, 879,025.76 and 206,997.65

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Solution

The fourth proportional to 586,145.69, 879,025.76 and 206,997.65 is: 310,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,145.69 : 879,025.76 = 206,997.65 : x
  2. Step 2: Convert to fraction form
    586,145.69/879,025.76 = 206,997.65/x
  3. Step 3: Cross multiply
    586,145.69x = 879,025.76 × 206,997.65
  4. Step 4: Simplify right side
    586,145.69x = 181,956,265,574.48
  5. Step 5: Solve for x
    x = 181,956,265,574.48/586,145.69
  6. Step 6: Final answer
    x = 310,428.39

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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.