Home / 432,014.90-647,698.35-221,803.70

Finding the Fourth Proportional to 432,014.90, 647,698.35 and 221,803.70

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Solution

The fourth proportional to 432,014.90, 647,698.35 and 221,803.70 is: 332,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,014.90 : 647,698.35 = 221,803.70 : x
  2. Step 2: Convert to fraction form
    432,014.90/647,698.35 = 221,803.70/x
  3. Step 3: Cross multiply
    432,014.90x = 647,698.35 × 221,803.70
  4. Step 4: Simplify right side
    432,014.90x = 143,661,890,513.90
  5. Step 5: Solve for x
    x = 143,661,890,513.90/432,014.90
  6. Step 6: Final answer
    x = 332,539.20

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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.