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Finding the Fourth Proportional to 555,473.69, 766,616.03 and 313,771.83

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Solution

The fourth proportional to 555,473.69, 766,616.03 and 313,771.83 is: 433,040.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,473.69 : 766,616.03 = 313,771.83 : x
  2. Step 2: Convert to fraction form
    555,473.69/766,616.03 = 313,771.83/x
  3. Step 3: Cross multiply
    555,473.69x = 766,616.03 × 313,771.83
  4. Step 4: Simplify right side
    555,473.69x = 240,542,510,807.36
  5. Step 5: Solve for x
    x = 240,542,510,807.36/555,473.69
  6. Step 6: Final answer
    x = 433,040.34

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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.