Home / 467,923.86-645,437.70-306,789.36

Finding the Fourth Proportional to 467,923.86, 645,437.70 and 306,789.36

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Solution

The fourth proportional to 467,923.86, 645,437.70 and 306,789.36 is: 423,174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,923.86 : 645,437.70 = 306,789.36 : x
  2. Step 2: Convert to fraction form
    467,923.86/645,437.70 = 306,789.36/x
  3. Step 3: Cross multiply
    467,923.86x = 645,437.70 × 306,789.36
  4. Step 4: Simplify right side
    467,923.86x = 198,013,418,902.87
  5. Step 5: Solve for x
    x = 198,013,418,902.87/467,923.86
  6. Step 6: Final answer
    x = 423,174.44

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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.