Home / 455,867.98-683,258.46-212,382.43

Finding the Fourth Proportional to 455,867.98, 683,258.46 and 212,382.43

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Solution

The fourth proportional to 455,867.98, 683,258.46 and 212,382.43 is: 318,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,867.98 : 683,258.46 = 212,382.43 : x
  2. Step 2: Convert to fraction form
    455,867.98/683,258.46 = 212,382.43/x
  3. Step 3: Cross multiply
    455,867.98x = 683,258.46 × 212,382.43
  4. Step 4: Simplify right side
    455,867.98x = 145,112,092,052.86
  5. Step 5: Solve for x
    x = 145,112,092,052.86/455,867.98
  6. Step 6: Final answer
    x = 318,320.43

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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.