Home / 509,788.40-764,632.92-154,805.49

Finding the Fourth Proportional to 509,788.40, 764,632.92 and 154,805.49

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Solution

The fourth proportional to 509,788.40, 764,632.92 and 154,805.49 is: 232,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,788.40 : 764,632.92 = 154,805.49 : x
  2. Step 2: Convert to fraction form
    509,788.40/764,632.92 = 154,805.49/x
  3. Step 3: Cross multiply
    509,788.40x = 764,632.92 × 154,805.49
  4. Step 4: Simplify right side
    509,788.40x = 118,369,374,431.25
  5. Step 5: Solve for x
    x = 118,369,374,431.25/509,788.40
  6. Step 6: Final answer
    x = 232,193.15

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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.