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Finding the Fourth Proportional to 519,148.80, 716,578.56 and 304,335.36

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Solution

The fourth proportional to 519,148.80, 716,578.56 and 304,335.36 is: 420,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,148.80 : 716,578.56 = 304,335.36 : x
  2. Step 2: Convert to fraction form
    519,148.80/716,578.56 = 304,335.36/x
  3. Step 3: Cross multiply
    519,148.80x = 716,578.56 × 304,335.36
  4. Step 4: Simplify right side
    519,148.80x = 218,080,194,025.88
  5. Step 5: Solve for x
    x = 218,080,194,025.88/519,148.80
  6. Step 6: Final answer
    x = 420,072.62

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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.