Home / 454,579.50-681,721.56-214,656.30

Finding the Fourth Proportional to 454,579.50, 681,721.56 and 214,656.30

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Solution

The fourth proportional to 454,579.50, 681,721.56 and 214,656.30 is: 321,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,579.50 : 681,721.56 = 214,656.30 : x
  2. Step 2: Convert to fraction form
    454,579.50/681,721.56 = 214,656.30/x
  3. Step 3: Cross multiply
    454,579.50x = 681,721.56 × 214,656.30
  4. Step 4: Simplify right side
    454,579.50x = 146,335,827,699.83
  5. Step 5: Solve for x
    x = 146,335,827,699.83/454,579.50
  6. Step 6: Final answer
    x = 321,914.71

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1.5x scale

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.