Home / 493,209.20-680,628.64-266,854.72

Finding the Fourth Proportional to 493,209.20, 680,628.64 and 266,854.72

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Solution

The fourth proportional to 493,209.20, 680,628.64 and 266,854.72 is: 368,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,209.20 : 680,628.64 = 266,854.72 : x
  2. Step 2: Convert to fraction form
    493,209.20/680,628.64 = 266,854.72/x
  3. Step 3: Cross multiply
    493,209.20x = 680,628.64 × 266,854.72
  4. Step 4: Simplify right side
    493,209.20x = 181,628,965,151.18
  5. Step 5: Solve for x
    x = 181,628,965,151.18/493,209.20
  6. Step 6: Final answer
    x = 368,259.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.