Home / 828,551.80-1,143,268.62-465,974.54

Finding the Fourth Proportional to 828,551.80, 1,143,268.62 and 465,974.54

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Solution

The fourth proportional to 828,551.80, 1,143,268.62 and 465,974.54 is: 642,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,551.80 : 1,143,268.62 = 465,974.54 : x
  2. Step 2: Convert to fraction form
    828,551.80/1,143,268.62 = 465,974.54/x
  3. Step 3: Cross multiply
    828,551.80x = 1,143,268.62 × 465,974.54
  4. Step 4: Simplify right side
    828,551.80x = 532,734,069,300.94
  5. Step 5: Solve for x
    x = 532,734,069,300.94/828,551.80
  6. Step 6: Final answer
    x = 642,970.14

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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.