Home / 828,980.25-1,143,992.79-471,284.25

Finding the Fourth Proportional to 828,980.25, 1,143,992.79 and 471,284.25

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Solution

The fourth proportional to 828,980.25, 1,143,992.79 and 471,284.25 is: 650,372.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,980.25 : 1,143,992.79 = 471,284.25 : x
  2. Step 2: Convert to fraction form
    828,980.25/1,143,992.79 = 471,284.25/x
  3. Step 3: Cross multiply
    828,980.25x = 1,143,992.79 × 471,284.25
  4. Step 4: Simplify right side
    828,980.25x = 539,145,784,040.56
  5. Step 5: Solve for x
    x = 539,145,784,040.56/828,980.25
  6. Step 6: Final answer
    x = 650,372.29

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1.5x scale

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.