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Finding the Fourth Proportional to 423,689.07, 584,548.65 and 239,902.56

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Solution

The fourth proportional to 423,689.07, 584,548.65 and 239,902.56 is: 330,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,689.07 : 584,548.65 = 239,902.56 : x
  2. Step 2: Convert to fraction form
    423,689.07/584,548.65 = 239,902.56/x
  3. Step 3: Cross multiply
    423,689.07x = 584,548.65 × 239,902.56
  4. Step 4: Simplify right side
    423,689.07x = 140,234,717,579.54
  5. Step 5: Solve for x
    x = 140,234,717,579.54/423,689.07
  6. Step 6: Final answer
    x = 330,984.98

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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.