Home / 611,220.03-916,622.43-211,767.56

Finding the Fourth Proportional to 611,220.03, 916,622.43 and 211,767.56

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Solution

The fourth proportional to 611,220.03, 916,622.43 and 211,767.56 is: 317,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,220.03 : 916,622.43 = 211,767.56 : x
  2. Step 2: Convert to fraction form
    611,220.03/916,622.43 = 211,767.56/x
  3. Step 3: Cross multiply
    611,220.03x = 916,622.43 × 211,767.56
  4. Step 4: Simplify right side
    611,220.03x = 194,110,898,658.47
  5. Step 5: Solve for x
    x = 194,110,898,658.47/611,220.03
  6. Step 6: Final answer
    x = 317,579.42

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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.