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Finding the Fourth Proportional to 627,359.82, 940,510.72 and 272,106.28

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Solution

The fourth proportional to 627,359.82, 940,510.72 and 272,106.28 is: 407,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,359.82 : 940,510.72 = 272,106.28 : x
  2. Step 2: Convert to fraction form
    627,359.82/940,510.72 = 272,106.28/x
  3. Step 3: Cross multiply
    627,359.82x = 940,510.72 × 272,106.28
  4. Step 4: Simplify right side
    627,359.82x = 255,918,873,319.32
  5. Step 5: Solve for x
    x = 255,918,873,319.32/627,359.82
  6. Step 6: Final answer
    x = 407,929.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.