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Finding the Fourth Proportional to 652,816.36, 978,510.30 and 279,061.48

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Solution

The fourth proportional to 652,816.36, 978,510.30 and 279,061.48 is: 418,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,816.36 : 978,510.30 = 279,061.48 : x
  2. Step 2: Convert to fraction form
    652,816.36/978,510.30 = 279,061.48/x
  3. Step 3: Cross multiply
    652,816.36x = 978,510.30 × 279,061.48
  4. Step 4: Simplify right side
    652,816.36x = 273,064,532,513.24
  5. Step 5: Solve for x
    x = 273,064,532,513.24/652,816.36
  6. Step 6: Final answer
    x = 418,286.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.