Home / 674,644.20-1,012,355.10-254,221.80

Finding the Fourth Proportional to 674,644.20, 1,012,355.10 and 254,221.80

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Solution

The fourth proportional to 674,644.20, 1,012,355.10 and 254,221.80 is: 381,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,644.20 : 1,012,355.10 = 254,221.80 : x
  2. Step 2: Convert to fraction form
    674,644.20/1,012,355.10 = 254,221.80/x
  3. Step 3: Cross multiply
    674,644.20x = 1,012,355.10 × 254,221.80
  4. Step 4: Simplify right side
    674,644.20x = 257,362,735,761.18
  5. Step 5: Solve for x
    x = 257,362,735,761.18/674,644.20
  6. Step 6: Final answer
    x = 381,479.21

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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.