Home / 750,800.83-1,036,121.88-428,504.46

Finding the Fourth Proportional to 750,800.83, 1,036,121.88 and 428,504.46

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Solution

The fourth proportional to 750,800.83, 1,036,121.88 and 428,504.46 is: 591,345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,800.83 : 1,036,121.88 = 428,504.46 : x
  2. Step 2: Convert to fraction form
    750,800.83/1,036,121.88 = 428,504.46/x
  3. Step 3: Cross multiply
    750,800.83x = 1,036,121.88 × 428,504.46
  4. Step 4: Simplify right side
    750,800.83x = 443,982,846,683.59
  5. Step 5: Solve for x
    x = 443,982,846,683.59/750,800.83
  6. Step 6: Final answer
    x = 591,345.71

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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.