Home / 828,494.76-1,143,311.88-465,918.51

Finding the Fourth Proportional to 828,494.76, 1,143,311.88 and 465,918.51

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Solution

The fourth proportional to 828,494.76, 1,143,311.88 and 465,918.51 is: 642,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,494.76 : 1,143,311.88 = 465,918.51 : x
  2. Step 2: Convert to fraction form
    828,494.76/1,143,311.88 = 465,918.51/x
  3. Step 3: Cross multiply
    828,494.76x = 1,143,311.88 × 465,918.51
  4. Step 4: Simplify right side
    828,494.76x = 532,690,167,594.90
  5. Step 5: Solve for x
    x = 532,690,167,594.90/828,494.76
  6. Step 6: Final answer
    x = 642,961.42

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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.