Home / 620,566.80-930,959.55-221,439.30

Finding the Fourth Proportional to 620,566.80, 930,959.55 and 221,439.30

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Solution

The fourth proportional to 620,566.80, 930,959.55 and 221,439.30 is: 332,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,566.80 : 930,959.55 = 221,439.30 : x
  2. Step 2: Convert to fraction form
    620,566.80/930,959.55 = 221,439.30/x
  3. Step 3: Cross multiply
    620,566.80x = 930,959.55 × 221,439.30
  4. Step 4: Simplify right side
    620,566.80x = 206,151,031,080.32
  5. Step 5: Solve for x
    x = 206,151,031,080.32/620,566.80
  6. Step 6: Final answer
    x = 332,197.97

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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.