Home / 842,959.80-1,261,815.30-816,715.80

Finding the Fourth Proportional to 842,959.80, 1,261,815.30 and 816,715.80

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Solution

The fourth proportional to 842,959.80, 1,261,815.30 and 816,715.80 is: 1,222,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,959.80 : 1,261,815.30 = 816,715.80 : x
  2. Step 2: Convert to fraction form
    842,959.80/1,261,815.30 = 816,715.80/x
  3. Step 3: Cross multiply
    842,959.80x = 1,261,815.30 × 816,715.80
  4. Step 4: Simplify right side
    842,959.80x = 1,030,544,492,191.74
  5. Step 5: Solve for x
    x = 1,030,544,492,191.74/842,959.80
  6. Step 6: Final answer
    x = 1,222,531.01

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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.