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Finding the Fourth Proportional to 555,190.29, 767,453.85 and 495,353.97

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Solution

The fourth proportional to 555,190.29, 767,453.85 and 495,353.97 is: 684,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,190.29 : 767,453.85 = 495,353.97 : x
  2. Step 2: Convert to fraction form
    555,190.29/767,453.85 = 495,353.97/x
  3. Step 3: Cross multiply
    555,190.29x = 767,453.85 × 495,353.97
  4. Step 4: Simplify right side
    555,190.29x = 380,161,311,389.29
  5. Step 5: Solve for x
    x = 380,161,311,389.29/555,190.29
  6. Step 6: Final answer
    x = 684,740.56

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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.