Home / 821,401.76-1,232,219.42-252,830.28

Finding the Fourth Proportional to 821,401.76, 1,232,219.42 and 252,830.28

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Solution

The fourth proportional to 821,401.76, 1,232,219.42 and 252,830.28 is: 379,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,401.76 : 1,232,219.42 = 252,830.28 : x
  2. Step 2: Convert to fraction form
    821,401.76/1,232,219.42 = 252,830.28/x
  3. Step 3: Cross multiply
    821,401.76x = 1,232,219.42 × 252,830.28
  4. Step 4: Simplify right side
    821,401.76x = 311,542,385,284.82
  5. Step 5: Solve for x
    x = 311,542,385,284.82/821,401.76
  6. Step 6: Final answer
    x = 379,281.37

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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.