Home / 685,535.08-1,028,332.06-212,229.16

Finding the Fourth Proportional to 685,535.08, 1,028,332.06 and 212,229.16

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Solution

The fourth proportional to 685,535.08, 1,028,332.06 and 212,229.16 is: 318,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,535.08 : 1,028,332.06 = 212,229.16 : x
  2. Step 2: Convert to fraction form
    685,535.08/1,028,332.06 = 212,229.16/x
  3. Step 3: Cross multiply
    685,535.08x = 1,028,332.06 × 212,229.16
  4. Step 4: Simplify right side
    685,535.08x = 218,242,049,294.87
  5. Step 5: Solve for x
    x = 218,242,049,294.87/685,535.08
  6. Step 6: Final answer
    x = 318,352.85

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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.