Home / 828,494.76-1,143,311.90-465,918.50

Finding the Fourth Proportional to 828,494.76, 1,143,311.90 and 465,918.50

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Solution

The fourth proportional to 828,494.76, 1,143,311.90 and 465,918.50 is: 642,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,494.76 : 1,143,311.90 = 465,918.50 : x
  2. Step 2: Convert to fraction form
    828,494.76/1,143,311.90 = 465,918.50/x
  3. Step 3: Cross multiply
    828,494.76x = 1,143,311.90 × 465,918.50
  4. Step 4: Simplify right side
    828,494.76x = 532,690,165,480.15
  5. Step 5: Solve for x
    x = 532,690,165,480.15/828,494.76
  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.