Home / 919,100.20-1,378,650.30-682,904.20

Finding the Fourth Proportional to 919,100.20, 1,378,650.30 and 682,904.20

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Solution

The fourth proportional to 919,100.20, 1,378,650.30 and 682,904.20 is: 1,024,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,100.20 : 1,378,650.30 = 682,904.20 : x
  2. Step 2: Convert to fraction form
    919,100.20/1,378,650.30 = 682,904.20/x
  3. Step 3: Cross multiply
    919,100.20x = 1,378,650.30 × 682,904.20
  4. Step 4: Simplify right side
    919,100.20x = 941,486,080,201.26
  5. Step 5: Solve for x
    x = 941,486,080,201.26/919,100.20
  6. Step 6: Final answer
    x = 1,024,356.30

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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.