Home / 648,355.90-972,611.46-199,017.88

Finding the Fourth Proportional to 648,355.90, 972,611.46 and 199,017.88

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Solution

The fourth proportional to 648,355.90, 972,611.46 and 199,017.88 is: 298,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,355.90 : 972,611.46 = 199,017.88 : x
  2. Step 2: Convert to fraction form
    648,355.90/972,611.46 = 199,017.88/x
  3. Step 3: Cross multiply
    648,355.90x = 972,611.46 × 199,017.88
  4. Step 4: Simplify right side
    648,355.90x = 193,567,070,832.91
  5. Step 5: Solve for x
    x = 193,567,070,832.91/648,355.90
  6. Step 6: Final answer
    x = 298,550.64

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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.