Home / 670,692.18-1,006,138.30-221,460.50

Finding the Fourth Proportional to 670,692.18, 1,006,138.30 and 221,460.50

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Solution

The fourth proportional to 670,692.18, 1,006,138.30 and 221,460.50 is: 332,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,692.18 : 1,006,138.30 = 221,460.50 : x
  2. Step 2: Convert to fraction form
    670,692.18/1,006,138.30 = 221,460.50/x
  3. Step 3: Cross multiply
    670,692.18x = 1,006,138.30 × 221,460.50
  4. Step 4: Simplify right side
    670,692.18x = 222,819,890,987.15
  5. Step 5: Solve for x
    x = 222,819,890,987.15/670,692.18
  6. Step 6: Final answer
    x = 332,223.78

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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.