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Finding the Fourth Proportional to 555,475.54, 766,618.59 and 313,773.68

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Solution

The fourth proportional to 555,475.54, 766,618.59 and 313,773.68 is: 433,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,475.54 : 766,618.59 = 313,773.68 : x
  2. Step 2: Convert to fraction form
    555,475.54/766,618.59 = 313,773.68/x
  3. Step 3: Cross multiply
    555,475.54x = 766,618.59 × 313,773.68
  4. Step 4: Simplify right side
    555,475.54x = 240,544,734,571.84
  5. Step 5: Solve for x
    x = 240,544,734,571.84/555,475.54
  6. Step 6: Final answer
    x = 433,042.89

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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.