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Finding the Fourth Proportional to 509,637.39, 764,460.72 and 154,651.43

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Solution

The fourth proportional to 509,637.39, 764,460.72 and 154,651.43 is: 231,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,637.39 : 764,460.72 = 154,651.43 : x
  2. Step 2: Convert to fraction form
    509,637.39/764,460.72 = 154,651.43/x
  3. Step 3: Cross multiply
    509,637.39x = 764,460.72 × 154,651.43
  4. Step 4: Simplify right side
    509,637.39x = 118,224,943,526.83
  5. Step 5: Solve for x
    x = 118,224,943,526.83/509,637.39
  6. Step 6: Final answer
    x = 231,978.55

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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.