Home / 670,116.42-1,005,299.15-220,868.84

Finding the Fourth Proportional to 670,116.42, 1,005,299.15 and 220,868.84

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Solution

The fourth proportional to 670,116.42, 1,005,299.15 and 220,868.84 is: 331,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,116.42 : 1,005,299.15 = 220,868.84 : x
  2. Step 2: Convert to fraction form
    670,116.42/1,005,299.15 = 220,868.84/x
  3. Step 3: Cross multiply
    670,116.42x = 1,005,299.15 × 220,868.84
  4. Step 4: Simplify right side
    670,116.42x = 222,039,250,982.65
  5. Step 5: Solve for x
    x = 222,039,250,982.65/670,116.42
  6. Step 6: Final answer
    x = 331,344.29

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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.