Home / 619,518.67-929,278.05-220,175.20

Finding the Fourth Proportional to 619,518.67, 929,278.05 and 220,175.20

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Solution

The fourth proportional to 619,518.67, 929,278.05 and 220,175.20 is: 330,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,518.67 : 929,278.05 = 220,175.20 : x
  2. Step 2: Convert to fraction form
    619,518.67/929,278.05 = 220,175.20/x
  3. Step 3: Cross multiply
    619,518.67x = 929,278.05 × 220,175.20
  4. Step 4: Simplify right side
    619,518.67x = 204,603,980,514.36
  5. Step 5: Solve for x
    x = 204,603,980,514.36/619,518.67
  6. Step 6: Final answer
    x = 330,262.82

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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.