Home / 611,221.03-916,623.93-211,768.56

Finding the Fourth Proportional to 611,221.03, 916,623.93 and 211,768.56

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Solution

The fourth proportional to 611,221.03, 916,623.93 and 211,768.56 is: 317,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,221.03 : 916,623.93 = 211,768.56 : x
  2. Step 2: Convert to fraction form
    611,221.03/916,623.93 = 211,768.56/x
  3. Step 3: Cross multiply
    611,221.03x = 916,623.93 × 211,768.56
  4. Step 4: Simplify right side
    611,221.03x = 194,112,129,717.64
  5. Step 5: Solve for x
    x = 194,112,129,717.64/611,221.03
  6. Step 6: Final answer
    x = 317,580.91

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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.