Home / 509,721.96-764,602.38-260,112.36

Finding the Fourth Proportional to 509,721.96, 764,602.38 and 260,112.36

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Solution

The fourth proportional to 509,721.96, 764,602.38 and 260,112.36 is: 390,178.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,721.96 : 764,602.38 = 260,112.36 : x
  2. Step 2: Convert to fraction form
    509,721.96/764,602.38 = 260,112.36/x
  3. Step 3: Cross multiply
    509,721.96x = 764,602.38 × 260,112.36
  4. Step 4: Simplify right side
    509,721.96x = 198,882,529,523.42
  5. Step 5: Solve for x
    x = 198,882,529,523.42/509,721.96
  6. Step 6: Final answer
    x = 390,178.46

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1.5x scale

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.