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Finding the Fourth Proportional to 555,758.70, 766,947.74 and 301,109.69

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Solution

The fourth proportional to 555,758.70, 766,947.74 and 301,109.69 is: 415,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,758.70 : 766,947.74 = 301,109.69 : x
  2. Step 2: Convert to fraction form
    555,758.70/766,947.74 = 301,109.69/x
  3. Step 3: Cross multiply
    555,758.70x = 766,947.74 × 301,109.69
  4. Step 4: Simplify right side
    555,758.70x = 230,935,390,897.31
  5. Step 5: Solve for x
    x = 230,935,390,897.31/555,758.70
  6. Step 6: Final answer
    x = 415,531.76

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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.