Home / 694,656.40-1,042,042.20-221,328.40

Finding the Fourth Proportional to 694,656.40, 1,042,042.20 and 221,328.40

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Solution

The fourth proportional to 694,656.40, 1,042,042.20 and 221,328.40 is: 332,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,656.40 : 1,042,042.20 = 221,328.40 : x
  2. Step 2: Convert to fraction form
    694,656.40/1,042,042.20 = 221,328.40/x
  3. Step 3: Cross multiply
    694,656.40x = 1,042,042.20 × 221,328.40
  4. Step 4: Simplify right side
    694,656.40x = 230,633,532,858.48
  5. Step 5: Solve for x
    x = 230,633,532,858.48/694,656.40
  6. Step 6: Final answer
    x = 332,010.95

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1.5x scale

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.