Home / 647,238.78-971,290.08-226,514.70

Finding the Fourth Proportional to 647,238.78, 971,290.08 and 226,514.70

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Solution

The fourth proportional to 647,238.78, 971,290.08 and 226,514.70 is: 339,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,238.78 : 971,290.08 = 226,514.70 : x
  2. Step 2: Convert to fraction form
    647,238.78/971,290.08 = 226,514.70/x
  3. Step 3: Cross multiply
    647,238.78x = 971,290.08 × 226,514.70
  4. Step 4: Simplify right side
    647,238.78x = 220,011,481,084.18
  5. Step 5: Solve for x
    x = 220,011,481,084.18/647,238.78
  6. Step 6: Final answer
    x = 339,923.21

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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.