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Finding the Fourth Proportional to 605,956.65, 908,836.52 and 286,107.90

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Solution

The fourth proportional to 605,956.65, 908,836.52 and 286,107.90 is: 429,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,956.65 : 908,836.52 = 286,107.90 : x
  2. Step 2: Convert to fraction form
    605,956.65/908,836.52 = 286,107.90/x
  3. Step 3: Cross multiply
    605,956.65x = 908,836.52 × 286,107.90
  4. Step 4: Simplify right side
    605,956.65x = 260,025,303,636.33
  5. Step 5: Solve for x
    x = 260,025,303,636.33/605,956.65
  6. Step 6: Final answer
    x = 429,115.36

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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.