Home / 827,007.33-1,240,687.55-287,280.33

Finding the Fourth Proportional to 827,007.33, 1,240,687.55 and 287,280.33

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Solution

The fourth proportional to 827,007.33, 1,240,687.55 and 287,280.33 is: 430,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,007.33 : 1,240,687.55 = 287,280.33 : x
  2. Step 2: Convert to fraction form
    827,007.33/1,240,687.55 = 287,280.33/x
  3. Step 3: Cross multiply
    827,007.33x = 1,240,687.55 × 287,280.33
  4. Step 4: Simplify right side
    827,007.33x = 356,425,128,790.89
  5. Step 5: Solve for x
    x = 356,425,128,790.89/827,007.33
  6. Step 6: Final answer
    x = 430,981.83

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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.