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Finding the Fourth Proportional to 555,688.62, 766,850.22 and 301,039.74

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Solution

The fourth proportional to 555,688.62, 766,850.22 and 301,039.74 is: 415,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,688.62 : 766,850.22 = 301,039.74 : x
  2. Step 2: Convert to fraction form
    555,688.62/766,850.22 = 301,039.74/x
  3. Step 3: Cross multiply
    555,688.62x = 766,850.22 × 301,039.74
  4. Step 4: Simplify right side
    555,688.62x = 230,852,390,847.74
  5. Step 5: Solve for x
    x = 230,852,390,847.74/555,688.62
  6. Step 6: Final answer
    x = 415,434.80

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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.