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Finding the Fourth Proportional to 659,517.30, 988,769.04 and 335,038.62

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Solution

The fourth proportional to 659,517.30, 988,769.04 and 335,038.62 is: 502,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,517.30 : 988,769.04 = 335,038.62 : x
  2. Step 2: Convert to fraction form
    659,517.30/988,769.04 = 335,038.62/x
  3. Step 3: Cross multiply
    659,517.30x = 988,769.04 × 335,038.62
  4. Step 4: Simplify right side
    659,517.30x = 331,275,818,368.21
  5. Step 5: Solve for x
    x = 331,275,818,368.21/659,517.30
  6. Step 6: Final answer
    x = 502,300.42

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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.