Home / 1,009,401.20-1,512,719.40-822,777.20

Finding the Fourth Proportional to 1,009,401.20, 1,512,719.40 and 822,777.20

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Solution

The fourth proportional to 1,009,401.20, 1,512,719.40 and 822,777.20 is: 1,233,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,401.20 : 1,512,719.40 = 822,777.20 : x
  2. Step 2: Convert to fraction form
    1,009,401.20/1,512,719.40 = 822,777.20/x
  3. Step 3: Cross multiply
    1,009,401.20x = 1,512,719.40 × 822,777.20
  4. Step 4: Simplify right side
    1,009,401.20x = 1,244,631,032,317.68
  5. Step 5: Solve for x
    x = 1,244,631,032,317.68/1,009,401.20
  6. Step 6: Final answer
    x = 1,233,038.99

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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.