Home / 524,942.31-787,815.23-406,319.43

Finding the Fourth Proportional to 524,942.31, 787,815.23 and 406,319.43

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Solution

The fourth proportional to 524,942.31, 787,815.23 and 406,319.43 is: 609,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,942.31 : 787,815.23 = 406,319.43 : x
  2. Step 2: Convert to fraction form
    524,942.31/787,815.23 = 406,319.43/x
  3. Step 3: Cross multiply
    524,942.31x = 787,815.23 × 406,319.43
  4. Step 4: Simplify right side
    524,942.31x = 320,104,633,167.32
  5. Step 5: Solve for x
    x = 320,104,633,167.32/524,942.31
  6. Step 6: Final answer
    x = 609,790.12

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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.