Home / 1,129,012.20-1,558,054.50-619,761

Finding the Fourth Proportional to 1,129,012.20, 1,558,054.50 and 619,761

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Solution

The fourth proportional to 1,129,012.20, 1,558,054.50 and 619,761 is: 855,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,012.20 : 1,558,054.50 = 619,761 : x
  2. Step 2: Convert to fraction form
    1,129,012.20/1,558,054.50 = 619,761/x
  3. Step 3: Cross multiply
    1,129,012.20x = 1,558,054.50 × 619,761
  4. Step 4: Simplify right side
    1,129,012.20x = 965,621,414,974.50
  5. Step 5: Solve for x
    x = 965,621,414,974.50/1,129,012.20
  6. Step 6: Final answer
    x = 855,279.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.