Home / 498,628.72-688,017-294,713.92

Finding the Fourth Proportional to 498,628.72, 688,017 and 294,713.92

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Solution

The fourth proportional to 498,628.72, 688,017 and 294,713.92 is: 406,651.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,628.72 : 688,017 = 294,713.92 : x
  2. Step 2: Convert to fraction form
    498,628.72/688,017 = 294,713.92/x
  3. Step 3: Cross multiply
    498,628.72x = 688,017 × 294,713.92
  4. Step 4: Simplify right side
    498,628.72x = 202,768,187,096.64
  5. Step 5: Solve for x
    x = 202,768,187,096.64/498,628.72
  6. Step 6: Final answer
    x = 406,651.64

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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.