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Finding the Fourth Proportional to 472,518, 708,777 and 122,310

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Solution

The fourth proportional to 472,518, 708,777 and 122,310 is: 183,465

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,518 : 708,777 = 122,310 : x
  2. Step 2: Convert to fraction form
    472,518/708,777 = 122,310/x
  3. Step 3: Cross multiply
    472,518x = 708,777 × 122,310
  4. Step 4: Simplify right side
    472,518x = 86,690,514,870
  5. Step 5: Solve for x
    x = 86,690,514,870/472,518
  6. Step 6: Final answer
    x = 183,465

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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.