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Finding the Fourth Proportional to 822,662.20, 1,232,610.90 and 401,030.20

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Solution

The fourth proportional to 822,662.20, 1,232,610.90 and 401,030.20 is: 600,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,662.20 : 1,232,610.90 = 401,030.20 : x
  2. Step 2: Convert to fraction form
    822,662.20/1,232,610.90 = 401,030.20/x
  3. Step 3: Cross multiply
    822,662.20x = 1,232,610.90 × 401,030.20
  4. Step 4: Simplify right side
    822,662.20x = 494,314,195,749.18
  5. Step 5: Solve for x
    x = 494,314,195,749.18/822,662.20
  6. Step 6: Final answer
    x = 600,871.41

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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.