Home / 406,147.14-609,289.86-203,839.72

Finding the Fourth Proportional to 406,147.14, 609,289.86 and 203,839.72

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Solution

The fourth proportional to 406,147.14, 609,289.86 and 203,839.72 is: 305,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,147.14 : 609,289.86 = 203,839.72 : x
  2. Step 2: Convert to fraction form
    406,147.14/609,289.86 = 203,839.72/x
  3. Step 3: Cross multiply
    406,147.14x = 609,289.86 × 203,839.72
  4. Step 4: Simplify right side
    406,147.14x = 124,197,474,461.24
  5. Step 5: Solve for x
    x = 124,197,474,461.24/406,147.14
  6. Step 6: Final answer
    x = 305,794.29

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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.