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Finding the Fourth Proportional to 652,578.93, 978,920.93 and 247,964.88

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Solution

The fourth proportional to 652,578.93, 978,920.93 and 247,964.88 is: 371,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,578.93 : 978,920.93 = 247,964.88 : x
  2. Step 2: Convert to fraction form
    652,578.93/978,920.93 = 247,964.88/x
  3. Step 3: Cross multiply
    652,578.93x = 978,920.93 × 247,964.88
  4. Step 4: Simplify right side
    652,578.93x = 242,738,011,189.71
  5. Step 5: Solve for x
    x = 242,738,011,189.71/652,578.93
  6. Step 6: Final answer
    x = 371,967.28

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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.