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Finding the Fourth Proportional to 453,878.60, 681,036.60 and 320,471.60

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Solution

The fourth proportional to 453,878.60, 681,036.60 and 320,471.60 is: 480,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,878.60 : 681,036.60 = 320,471.60 : x
  2. Step 2: Convert to fraction form
    453,878.60/681,036.60 = 320,471.60/x
  3. Step 3: Cross multiply
    453,878.60x = 681,036.60 × 320,471.60
  4. Step 4: Simplify right side
    453,878.60x = 218,252,888,860.56
  5. Step 5: Solve for x
    x = 218,252,888,860.56/453,878.60
  6. Step 6: Final answer
    x = 480,861.82

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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.