Home / 858,003.04-1,287,343.55-325,665.37

Finding the Fourth Proportional to 858,003.04, 1,287,343.55 and 325,665.37

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Solution

The fourth proportional to 858,003.04, 1,287,343.55 and 325,665.37 is: 488,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,003.04 : 1,287,343.55 = 325,665.37 : x
  2. Step 2: Convert to fraction form
    858,003.04/1,287,343.55 = 325,665.37/x
  3. Step 3: Cross multiply
    858,003.04x = 1,287,343.55 × 325,665.37
  4. Step 4: Simplify right side
    858,003.04x = 419,243,213,527.86
  5. Step 5: Solve for x
    x = 419,243,213,527.86/858,003.04
  6. Step 6: Final answer
    x = 488,626.72

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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.