Home / 654,221.99-981,083.91-429,522.32

Finding the Fourth Proportional to 654,221.99, 981,083.91 and 429,522.32

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Solution

The fourth proportional to 654,221.99, 981,083.91 and 429,522.32 is: 644,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,221.99 : 981,083.91 = 429,522.32 : x
  2. Step 2: Convert to fraction form
    654,221.99/981,083.91 = 429,522.32/x
  3. Step 3: Cross multiply
    654,221.99x = 981,083.91 × 429,522.32
  4. Step 4: Simplify right side
    654,221.99x = 421,397,437,137.87
  5. Step 5: Solve for x
    x = 421,397,437,137.87/654,221.99
  6. Step 6: Final answer
    x = 644,119.95

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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.