Home / 820,801.64-1,231,325.37-288,228.80

Finding the Fourth Proportional to 820,801.64, 1,231,325.37 and 288,228.80

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Solution

The fourth proportional to 820,801.64, 1,231,325.37 and 288,228.80 is: 432,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,801.64 : 1,231,325.37 = 288,228.80 : x
  2. Step 2: Convert to fraction form
    820,801.64/1,231,325.37 = 288,228.80/x
  3. Step 3: Cross multiply
    820,801.64x = 1,231,325.37 × 288,228.80
  4. Step 4: Simplify right side
    820,801.64x = 354,903,427,648.03
  5. Step 5: Solve for x
    x = 354,903,427,648.03/820,801.64
  6. Step 6: Final answer
    x = 432,386.36

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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.