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Finding the Fourth Proportional to 555,648.71, 766,797.56 and 300,999.89

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Solution

The fourth proportional to 555,648.71, 766,797.56 and 300,999.89 is: 415,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,648.71 : 766,797.56 = 300,999.89 : x
  2. Step 2: Convert to fraction form
    555,648.71/766,797.56 = 300,999.89/x
  3. Step 3: Cross multiply
    555,648.71x = 766,797.56 × 300,999.89
  4. Step 4: Simplify right side
    555,648.71x = 230,805,983,881.76
  5. Step 5: Solve for x
    x = 230,805,983,881.76/555,648.71
  6. Step 6: Final answer
    x = 415,381.12

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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.