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Finding the Fourth Proportional to 978,467.98, 1,350,295.59 and 548,738.88

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Solution

The fourth proportional to 978,467.98, 1,350,295.59 and 548,738.88 is: 757,265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,467.98 : 1,350,295.59 = 548,738.88 : x
  2. Step 2: Convert to fraction form
    978,467.98/1,350,295.59 = 548,738.88/x
  3. Step 3: Cross multiply
    978,467.98x = 1,350,295.59 × 548,738.88
  4. Step 4: Simplify right side
    978,467.98x = 740,959,684,292.03
  5. Step 5: Solve for x
    x = 740,959,684,292.03/978,467.98
  6. Step 6: Final answer
    x = 757,265.14

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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.