Home / 721,037.14-1,081,672.35-300,355.54

Finding the Fourth Proportional to 721,037.14, 1,081,672.35 and 300,355.54

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Solution

The fourth proportional to 721,037.14, 1,081,672.35 and 300,355.54 is: 450,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,037.14 : 1,081,672.35 = 300,355.54 : x
  2. Step 2: Convert to fraction form
    721,037.14/1,081,672.35 = 300,355.54/x
  3. Step 3: Cross multiply
    721,037.14x = 1,081,672.35 × 300,355.54
  4. Step 4: Simplify right side
    721,037.14x = 324,886,282,787.32
  5. Step 5: Solve for x
    x = 324,886,282,787.32/721,037.14
  6. Step 6: Final answer
    x = 450,581.90

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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.