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Finding the Fourth Proportional to 659,704.80, 988,901.10 and 304,098.60

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Solution

The fourth proportional to 659,704.80, 988,901.10 and 304,098.60 is: 455,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,704.80 : 988,901.10 = 304,098.60 : x
  2. Step 2: Convert to fraction form
    659,704.80/988,901.10 = 304,098.60/x
  3. Step 3: Cross multiply
    659,704.80x = 988,901.10 × 304,098.60
  4. Step 4: Simplify right side
    659,704.80x = 300,723,440,048.46
  5. Step 5: Solve for x
    x = 300,723,440,048.46/659,704.80
  6. Step 6: Final answer
    x = 455,845.46

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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.