Home / 764,302.91-1,054,972.89-492,369.98

Finding the Fourth Proportional to 764,302.91, 1,054,972.89 and 492,369.98

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Solution

The fourth proportional to 764,302.91, 1,054,972.89 and 492,369.98 is: 679,621.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,302.91 : 1,054,972.89 = 492,369.98 : x
  2. Step 2: Convert to fraction form
    764,302.91/1,054,972.89 = 492,369.98/x
  3. Step 3: Cross multiply
    764,302.91x = 1,054,972.89 × 492,369.98
  4. Step 4: Simplify right side
    764,302.91x = 519,436,975,474.98
  5. Step 5: Solve for x
    x = 519,436,975,474.98/764,302.91
  6. Step 6: Final answer
    x = 679,621.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.