Home / 498,631.72-688,021.14-294,716.92

Finding the Fourth Proportional to 498,631.72, 688,021.14 and 294,716.92

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Solution

The fourth proportional to 498,631.72, 688,021.14 and 294,716.92 is: 406,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,631.72 : 688,021.14 = 294,716.92 : x
  2. Step 2: Convert to fraction form
    498,631.72/688,021.14 = 294,716.92/x
  3. Step 3: Cross multiply
    498,631.72x = 688,021.14 × 294,716.92
  4. Step 4: Simplify right side
    498,631.72x = 202,771,471,275.69
  5. Step 5: Solve for x
    x = 202,771,471,275.69/498,631.72
  6. Step 6: Final answer
    x = 406,655.78

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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.