Home / 398,501.06-597,634.95-328,206.02

Finding the Fourth Proportional to 398,501.06, 597,634.95 and 328,206.02

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Solution

The fourth proportional to 398,501.06, 597,634.95 and 328,206.02 is: 492,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,501.06 : 597,634.95 = 328,206.02 : x
  2. Step 2: Convert to fraction form
    398,501.06/597,634.95 = 328,206.02/x
  3. Step 3: Cross multiply
    398,501.06x = 597,634.95 × 328,206.02
  4. Step 4: Simplify right side
    398,501.06x = 196,147,388,352.40
  5. Step 5: Solve for x
    x = 196,147,388,352.40/398,501.06
  6. Step 6: Final answer
    x = 492,212.97

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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.