Home / 905,449.45-1,357,329.94-305,991.40

Finding the Fourth Proportional to 905,449.45, 1,357,329.94 and 305,991.40

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Solution

The fourth proportional to 905,449.45, 1,357,329.94 and 305,991.40 is: 458,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,449.45 : 1,357,329.94 = 305,991.40 : x
  2. Step 2: Convert to fraction form
    905,449.45/1,357,329.94 = 305,991.40/x
  3. Step 3: Cross multiply
    905,449.45x = 1,357,329.94 × 305,991.40
  4. Step 4: Simplify right side
    905,449.45x = 415,331,288,602.52
  5. Step 5: Solve for x
    x = 415,331,288,602.52/905,449.45
  6. Step 6: Final answer
    x = 458,701.80

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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.