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Finding the Fourth Proportional to 555,546.76, 766,655.76 and 300,898

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Solution

The fourth proportional to 555,546.76, 766,655.76 and 300,898 is: 415,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,546.76 : 766,655.76 = 300,898 : x
  2. Step 2: Convert to fraction form
    555,546.76/766,655.76 = 300,898/x
  3. Step 3: Cross multiply
    555,546.76x = 766,655.76 × 300,898
  4. Step 4: Simplify right side
    555,546.76x = 230,685,184,872.48
  5. Step 5: Solve for x
    x = 230,685,184,872.48/555,546.76
  6. Step 6: Final answer
    x = 415,239.91

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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.