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Finding the Fourth Proportional to 509,661.48, 764,521.38 and 154,687.08

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Solution

The fourth proportional to 509,661.48, 764,521.38 and 154,687.08 is: 232,039.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,661.48 : 764,521.38 = 154,687.08 : x
  2. Step 2: Convert to fraction form
    509,661.48/764,521.38 = 154,687.08/x
  3. Step 3: Cross multiply
    509,661.48x = 764,521.38 × 154,687.08
  4. Step 4: Simplify right side
    509,661.48x = 118,261,579,869.77
  5. Step 5: Solve for x
    x = 118,261,579,869.77/509,661.48
  6. Step 6: Final answer
    x = 232,039.47

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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.