Home / 509,929.80-765,004.05-154,979.70

Finding the Fourth Proportional to 509,929.80, 765,004.05 and 154,979.70

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Solution

The fourth proportional to 509,929.80, 765,004.05 and 154,979.70 is: 232,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,929.80 : 765,004.05 = 154,979.70 : x
  2. Step 2: Convert to fraction form
    509,929.80/765,004.05 = 154,979.70/x
  3. Step 3: Cross multiply
    509,929.80x = 765,004.05 × 154,979.70
  4. Step 4: Simplify right side
    509,929.80x = 118,560,098,167.79
  5. Step 5: Solve for x
    x = 118,560,098,167.79/509,929.80
  6. Step 6: Final answer
    x = 232,502.78

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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.