Home / 472,772.83-705,471.83-421,821.57

Finding the Fourth Proportional to 472,772.83, 705,471.83 and 421,821.57

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Solution

The fourth proportional to 472,772.83, 705,471.83 and 421,821.57 is: 629,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,772.83 : 705,471.83 = 421,821.57 : x
  2. Step 2: Convert to fraction form
    472,772.83/705,471.83 = 421,821.57/x
  3. Step 3: Cross multiply
    472,772.83x = 705,471.83 × 421,821.57
  4. Step 4: Simplify right side
    472,772.83x = 297,583,237,039.62
  5. Step 5: Solve for x
    x = 297,583,237,039.62/472,772.83
  6. Step 6: Final answer
    x = 629,442.35

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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.