Home / 961,238.07-1,442,000.45-353,979.68

Finding the Fourth Proportional to 961,238.07, 1,442,000.45 and 353,979.68

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Solution

The fourth proportional to 961,238.07, 1,442,000.45 and 353,979.68 is: 531,022.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,238.07 : 1,442,000.45 = 353,979.68 : x
  2. Step 2: Convert to fraction form
    961,238.07/1,442,000.45 = 353,979.68/x
  3. Step 3: Cross multiply
    961,238.07x = 1,442,000.45 × 353,979.68
  4. Step 4: Simplify right side
    961,238.07x = 510,438,857,850.86
  5. Step 5: Solve for x
    x = 510,438,857,850.86/961,238.07
  6. Step 6: Final answer
    x = 531,022.31

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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.