Home / 492,509.43-738,724.69-219,040.30

Finding the Fourth Proportional to 492,509.43, 738,724.69 and 219,040.30

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Solution

The fourth proportional to 492,509.43, 738,724.69 and 219,040.30 is: 328,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,509.43 : 738,724.69 = 219,040.30 : x
  2. Step 2: Convert to fraction form
    492,509.43/738,724.69 = 219,040.30/x
  3. Step 3: Cross multiply
    492,509.43x = 738,724.69 × 219,040.30
  4. Step 4: Simplify right side
    492,509.43x = 161,810,478,912.21
  5. Step 5: Solve for x
    x = 161,810,478,912.21/492,509.43
  6. Step 6: Final answer
    x = 328,542.91

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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.