Home / 1,331,987.30-1,996,340.70-905,522.30

Finding the Fourth Proportional to 1,331,987.30, 1,996,340.70 and 905,522.30

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Solution

The fourth proportional to 1,331,987.30, 1,996,340.70 and 905,522.30 is: 1,357,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,987.30 : 1,996,340.70 = 905,522.30 : x
  2. Step 2: Convert to fraction form
    1,331,987.30/1,996,340.70 = 905,522.30/x
  3. Step 3: Cross multiply
    1,331,987.30x = 1,996,340.70 × 905,522.30
  4. Step 4: Simplify right side
    1,331,987.30x = 1,807,731,022,247.61
  5. Step 5: Solve for x
    x = 1,807,731,022,247.61/1,331,987.30
  6. Step 6: Final answer
    x = 1,357,168.36

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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.