Home / 787,270.70-1,086,402.30-465,084.56

Finding the Fourth Proportional to 787,270.70, 1,086,402.30 and 465,084.56

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Solution

The fourth proportional to 787,270.70, 1,086,402.30 and 465,084.56 is: 641,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,270.70 : 1,086,402.30 = 465,084.56 : x
  2. Step 2: Convert to fraction form
    787,270.70/1,086,402.30 = 465,084.56/x
  3. Step 3: Cross multiply
    787,270.70x = 1,086,402.30 × 465,084.56
  4. Step 4: Simplify right side
    787,270.70x = 505,268,935,678.49
  5. Step 5: Solve for x
    x = 505,268,935,678.49/787,270.70
  6. Step 6: Final answer
    x = 641,798.22

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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.