Home / 1,420,753.89-2,131,273.39-409,900.89

Finding the Fourth Proportional to 1,420,753.89, 2,131,273.39 and 409,900.89

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Solution

The fourth proportional to 1,420,753.89, 2,131,273.39 and 409,900.89 is: 614,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,753.89 : 2,131,273.39 = 409,900.89 : x
  2. Step 2: Convert to fraction form
    1,420,753.89/2,131,273.39 = 409,900.89/x
  3. Step 3: Cross multiply
    1,420,753.89x = 2,131,273.39 × 409,900.89
  4. Step 4: Simplify right side
    1,420,753.89x = 873,610,859,394.32
  5. Step 5: Solve for x
    x = 873,610,859,394.32/1,420,753.89
  6. Step 6: Final answer
    x = 614,892.46

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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.