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Finding the Fourth Proportional to 472,521.80, 708,782.70 and 269,909.93

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Solution

The fourth proportional to 472,521.80, 708,782.70 and 269,909.93 is: 404,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,521.80 : 708,782.70 = 269,909.93 : x
  2. Step 2: Convert to fraction form
    472,521.80/708,782.70 = 269,909.93/x
  3. Step 3: Cross multiply
    472,521.80x = 708,782.70 × 269,909.93
  4. Step 4: Simplify right side
    472,521.80x = 191,307,488,942.21
  5. Step 5: Solve for x
    x = 191,307,488,942.21/472,521.80
  6. Step 6: Final answer
    x = 404,864.90

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Similar ratio
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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.