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Finding the Fourth Proportional to 866,609.13, 1,299,651.26 and 235,440.93

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Solution

The fourth proportional to 866,609.13, 1,299,651.26 and 235,440.93 is: 353,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,609.13 : 1,299,651.26 = 235,440.93 : x
  2. Step 2: Convert to fraction form
    866,609.13/1,299,651.26 = 235,440.93/x
  3. Step 3: Cross multiply
    866,609.13x = 1,299,651.26 × 235,440.93
  4. Step 4: Simplify right side
    866,609.13x = 305,991,100,152.87
  5. Step 5: Solve for x
    x = 305,991,100,152.87/866,609.13
  6. Step 6: Final answer
    x = 353,090.10

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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.