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Finding the Fourth Proportional to 555,735.41, 766,915.61 and 301,086.60

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Solution

The fourth proportional to 555,735.41, 766,915.61 and 301,086.60 is: 415,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,735.41 : 766,915.61 = 301,086.60 : x
  2. Step 2: Convert to fraction form
    555,735.41/766,915.61 = 301,086.60/x
  3. Step 3: Cross multiply
    555,735.41x = 766,915.61 × 301,086.60
  4. Step 4: Simplify right side
    555,735.41x = 230,908,013,501.83
  5. Step 5: Solve for x
    x = 230,908,013,501.83/555,735.41
  6. Step 6: Final answer
    x = 415,499.91

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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.