Home / 818,987.28-1,228,579.34-774,197.52

Finding the Fourth Proportional to 818,987.28, 1,228,579.34 and 774,197.52

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Solution

The fourth proportional to 818,987.28, 1,228,579.34 and 774,197.52 is: 1,161,389.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,987.28 : 1,228,579.34 = 774,197.52 : x
  2. Step 2: Convert to fraction form
    818,987.28/1,228,579.34 = 774,197.52/x
  3. Step 3: Cross multiply
    818,987.28x = 1,228,579.34 × 774,197.52
  4. Step 4: Simplify right side
    818,987.28x = 951,163,074,280.25
  5. Step 5: Solve for x
    x = 951,163,074,280.25/818,987.28
  6. Step 6: Final answer
    x = 1,161,389.31

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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.