Home / 1,008,279.70-1,512,419.55-928,563.55

Finding the Fourth Proportional to 1,008,279.70, 1,512,419.55 and 928,563.55

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Solution

The fourth proportional to 1,008,279.70, 1,512,419.55 and 928,563.55 is: 1,392,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,279.70 : 1,512,419.55 = 928,563.55 : x
  2. Step 2: Convert to fraction form
    1,008,279.70/1,512,419.55 = 928,563.55/x
  3. Step 3: Cross multiply
    1,008,279.70x = 1,512,419.55 × 928,563.55
  4. Step 4: Simplify right side
    1,008,279.70x = 1,404,377,666,437.40
  5. Step 5: Solve for x
    x = 1,404,377,666,437.40/1,008,279.70
  6. Step 6: Final answer
    x = 1,392,845.33

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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.