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Finding the Fourth Proportional to 862,574.34, 1,294,058.34 and 263,620.65

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Solution

The fourth proportional to 862,574.34, 1,294,058.34 and 263,620.65 is: 395,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,574.34 : 1,294,058.34 = 263,620.65 : x
  2. Step 2: Convert to fraction form
    862,574.34/1,294,058.34 = 263,620.65/x
  3. Step 3: Cross multiply
    862,574.34x = 1,294,058.34 × 263,620.65
  4. Step 4: Simplify right side
    862,574.34x = 341,140,500,728.72
  5. Step 5: Solve for x
    x = 341,140,500,728.72/862,574.34
  6. Step 6: Final answer
    x = 395,491.13

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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.