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Finding the Fourth Proportional to 978,952, 1,468,252.82 and 622,908.40

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Solution

The fourth proportional to 978,952, 1,468,252.82 and 622,908.40 is: 934,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,952 : 1,468,252.82 = 622,908.40 : x
  2. Step 2: Convert to fraction form
    978,952/1,468,252.82 = 622,908.40/x
  3. Step 3: Cross multiply
    978,952x = 1,468,252.82 × 622,908.40
  4. Step 4: Simplify right side
    978,952x = 914,587,014,901.69
  5. Step 5: Solve for x
    x = 914,587,014,901.69/978,952
  6. Step 6: Final answer
    x = 934,251.13

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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.