Home / 816,121.30-1,143,750.80-816,121.30

Finding the Fourth Proportional to 816,121.30, 1,143,750.80 and 816,121.30

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Solution

The fourth proportional to 816,121.30, 1,143,750.80 and 816,121.30 is: 1,143,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,121.30 : 1,143,750.80 = 816,121.30 : x
  2. Step 2: Convert to fraction form
    816,121.30/1,143,750.80 = 816,121.30/x
  3. Step 3: Cross multiply
    816,121.30x = 1,143,750.80 × 816,121.30
  4. Step 4: Simplify right side
    816,121.30x = 933,439,389,772.04
  5. Step 5: Solve for x
    x = 933,439,389,772.04/816,121.30
  6. Step 6: Final answer
    x = 1,143,750.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.