Home / 472,773.64-705,473.04-421,822.39

Finding the Fourth Proportional to 472,773.64, 705,473.04 and 421,822.39

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Solution

The fourth proportional to 472,773.64, 705,473.04 and 421,822.39 is: 629,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,773.64 : 705,473.04 = 421,822.39 : x
  2. Step 2: Convert to fraction form
    472,773.64/705,473.04 = 421,822.39/x
  3. Step 3: Cross multiply
    472,773.64x = 705,473.04 × 421,822.39
  4. Step 4: Simplify right side
    472,773.64x = 297,584,322,049.68
  5. Step 5: Solve for x
    x = 297,584,322,049.68/472,773.64
  6. Step 6: Final answer
    x = 629,443.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.