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Finding the Fourth Proportional to 521,879.63, 720,193.88 and 295,568.87

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Solution

The fourth proportional to 521,879.63, 720,193.88 and 295,568.87 is: 407,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,879.63 : 720,193.88 = 295,568.87 : x
  2. Step 2: Convert to fraction form
    521,879.63/720,193.88 = 295,568.87/x
  3. Step 3: Cross multiply
    521,879.63x = 720,193.88 × 295,568.87
  4. Step 4: Simplify right side
    521,879.63x = 212,866,888,430.47
  5. Step 5: Solve for x
    x = 212,866,888,430.47/521,879.63
  6. Step 6: Final answer
    x = 407,885.03

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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.