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Finding the Fourth Proportional to 652,292.80, 978,439.20 and 540,099.70

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Solution

The fourth proportional to 652,292.80, 978,439.20 and 540,099.70 is: 810,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,292.80 : 978,439.20 = 540,099.70 : x
  2. Step 2: Convert to fraction form
    652,292.80/978,439.20 = 540,099.70/x
  3. Step 3: Cross multiply
    652,292.80x = 978,439.20 × 540,099.70
  4. Step 4: Simplify right side
    652,292.80x = 528,454,718,388.24
  5. Step 5: Solve for x
    x = 528,454,718,388.24/652,292.80
  6. Step 6: Final answer
    x = 810,149.55

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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.