Home / 827,145.90-1,240,864.65-294,975.90

Finding the Fourth Proportional to 827,145.90, 1,240,864.65 and 294,975.90

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Solution

The fourth proportional to 827,145.90, 1,240,864.65 and 294,975.90 is: 442,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,145.90 : 1,240,864.65 = 294,975.90 : x
  2. Step 2: Convert to fraction form
    827,145.90/1,240,864.65 = 294,975.90/x
  3. Step 3: Cross multiply
    827,145.90x = 1,240,864.65 × 294,975.90
  4. Step 4: Simplify right side
    827,145.90x = 366,025,166,911.94
  5. Step 5: Solve for x
    x = 366,025,166,911.94/827,145.90
  6. Step 6: Final answer
    x = 442,515.85

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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.