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Finding the Fourth Proportional to 979,238.73, 1,468,851.08 and 689,859.48

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Solution

The fourth proportional to 979,238.73, 1,468,851.08 and 689,859.48 is: 1,034,784.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,238.73 : 1,468,851.08 = 689,859.48 : x
  2. Step 2: Convert to fraction form
    979,238.73/1,468,851.08 = 689,859.48/x
  3. Step 3: Cross multiply
    979,238.73x = 1,468,851.08 × 689,859.48
  4. Step 4: Simplify right side
    979,238.73x = 1,013,300,838,796.94
  5. Step 5: Solve for x
    x = 1,013,300,838,796.94/979,238.73
  6. Step 6: Final answer
    x = 1,034,784.27

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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.