Home / 705,021.28-972,930.60-382,731.64

Finding the Fourth Proportional to 705,021.28, 972,930.60 and 382,731.64

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Solution

The fourth proportional to 705,021.28, 972,930.60 and 382,731.64 is: 528,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,021.28 : 972,930.60 = 382,731.64 : x
  2. Step 2: Convert to fraction form
    705,021.28/972,930.60 = 382,731.64/x
  3. Step 3: Cross multiply
    705,021.28x = 972,930.60 × 382,731.64
  4. Step 4: Simplify right side
    705,021.28x = 372,371,324,144.18
  5. Step 5: Solve for x
    x = 372,371,324,144.18/705,021.28
  6. Step 6: Final answer
    x = 528,170.33

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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.