Home / 509,585.38-764,470.01-209,902.39

Finding the Fourth Proportional to 509,585.38, 764,470.01 and 209,902.39

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Solution

The fourth proportional to 509,585.38, 764,470.01 and 209,902.39 is: 314,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,585.38 : 764,470.01 = 209,902.39 : x
  2. Step 2: Convert to fraction form
    509,585.38/764,470.01 = 209,902.39/x
  3. Step 3: Cross multiply
    509,585.38x = 764,470.01 × 209,902.39
  4. Step 4: Simplify right side
    509,585.38x = 160,464,081,132.81
  5. Step 5: Solve for x
    x = 160,464,081,132.81/509,585.38
  6. Step 6: Final answer
    x = 314,891.45

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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.