Home / 872,379.11-1,308,777.80-422,574.27

Finding the Fourth Proportional to 872,379.11, 1,308,777.80 and 422,574.27

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Solution

The fourth proportional to 872,379.11, 1,308,777.80 and 422,574.27 is: 633,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,379.11 : 1,308,777.80 = 422,574.27 : x
  2. Step 2: Convert to fraction form
    872,379.11/1,308,777.80 = 422,574.27/x
  3. Step 3: Cross multiply
    872,379.11x = 1,308,777.80 × 422,574.27
  4. Step 4: Simplify right side
    872,379.11x = 553,055,821,314.34
  5. Step 5: Solve for x
    x = 553,055,821,314.34/872,379.11
  6. Step 6: Final answer
    x = 633,962.71

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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.