Home / 493,944.66-681,393.09-312,350.58

Finding the Fourth Proportional to 493,944.66, 681,393.09 and 312,350.58

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Solution

The fourth proportional to 493,944.66, 681,393.09 and 312,350.58 is: 430,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,944.66 : 681,393.09 = 312,350.58 : x
  2. Step 2: Convert to fraction form
    493,944.66/681,393.09 = 312,350.58/x
  3. Step 3: Cross multiply
    493,944.66x = 681,393.09 × 312,350.58
  4. Step 4: Simplify right side
    493,944.66x = 212,833,526,869.49
  5. Step 5: Solve for x
    x = 212,833,526,869.49/493,944.66
  6. Step 6: Final answer
    x = 430,885.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.