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Finding the Fourth Proportional to 805,602.82, 1,208,145.73 and 265,737.82

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Solution

The fourth proportional to 805,602.82, 1,208,145.73 and 265,737.82 is: 398,521.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,602.82 : 1,208,145.73 = 265,737.82 : x
  2. Step 2: Convert to fraction form
    805,602.82/1,208,145.73 = 265,737.82/x
  3. Step 3: Cross multiply
    805,602.82x = 1,208,145.73 × 265,737.82
  4. Step 4: Simplify right side
    805,602.82x = 321,050,008,847.80
  5. Step 5: Solve for x
    x = 321,050,008,847.80/805,602.82
  6. Step 6: Final answer
    x = 398,521.46

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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.