Home / 691,972.20-1,037,763.90-218,802.60

Finding the Fourth Proportional to 691,972.20, 1,037,763.90 and 218,802.60

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Solution

The fourth proportional to 691,972.20, 1,037,763.90 and 218,802.60 is: 328,142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,972.20 : 1,037,763.90 = 218,802.60 : x
  2. Step 2: Convert to fraction form
    691,972.20/1,037,763.90 = 218,802.60/x
  3. Step 3: Cross multiply
    691,972.20x = 1,037,763.90 × 218,802.60
  4. Step 4: Simplify right side
    691,972.20x = 227,065,439,506.14
  5. Step 5: Solve for x
    x = 227,065,439,506.14/691,972.20
  6. Step 6: Final answer
    x = 328,142.43

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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.