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Finding the Fourth Proportional to 650,964.90, 978,780.15 and 548,321.70

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Solution

The fourth proportional to 650,964.90, 978,780.15 and 548,321.70 is: 824,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,964.90 : 978,780.15 = 548,321.70 : x
  2. Step 2: Convert to fraction form
    650,964.90/978,780.15 = 548,321.70/x
  3. Step 3: Cross multiply
    650,964.90x = 978,780.15 × 548,321.70
  4. Step 4: Simplify right side
    650,964.90x = 536,686,395,774.26
  5. Step 5: Solve for x
    x = 536,686,395,774.26/650,964.90
  6. Step 6: Final answer
    x = 824,447.52

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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.