Home / 680,002.96-1,020,037.72-259,200.40

Finding the Fourth Proportional to 680,002.96, 1,020,037.72 and 259,200.40

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Solution

The fourth proportional to 680,002.96, 1,020,037.72 and 259,200.40 is: 388,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,002.96 : 1,020,037.72 = 259,200.40 : x
  2. Step 2: Convert to fraction form
    680,002.96/1,020,037.72 = 259,200.40/x
  3. Step 3: Cross multiply
    680,002.96x = 1,020,037.72 × 259,200.40
  4. Step 4: Simplify right side
    680,002.96x = 264,394,185,039.09
  5. Step 5: Solve for x
    x = 264,394,185,039.09/680,002.96
  6. Step 6: Final answer
    x = 388,813.29

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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.