Home / 856,510.80-1,284,766.20-823,851.60

Finding the Fourth Proportional to 856,510.80, 1,284,766.20 and 823,851.60

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Solution

The fourth proportional to 856,510.80, 1,284,766.20 and 823,851.60 is: 1,235,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,510.80 : 1,284,766.20 = 823,851.60 : x
  2. Step 2: Convert to fraction form
    856,510.80/1,284,766.20 = 823,851.60/x
  3. Step 3: Cross multiply
    856,510.80x = 1,284,766.20 × 823,851.60
  4. Step 4: Simplify right side
    856,510.80x = 1,058,456,689,495.92
  5. Step 5: Solve for x
    x = 1,058,456,689,495.92/856,510.80
  6. Step 6: Final answer
    x = 1,235,777.40

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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.