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Finding the Fourth Proportional to 659,157.80, 988,736.70 and 304,066.76

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Solution

The fourth proportional to 659,157.80, 988,736.70 and 304,066.76 is: 456,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,157.80 : 988,736.70 = 304,066.76 : x
  2. Step 2: Convert to fraction form
    659,157.80/988,736.70 = 304,066.76/x
  3. Step 3: Cross multiply
    659,157.80x = 988,736.70 × 304,066.76
  4. Step 4: Simplify right side
    659,157.80x = 300,641,964,862.09
  5. Step 5: Solve for x
    x = 300,641,964,862.09/659,157.80
  6. Step 6: Final answer
    x = 456,100.14

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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.