Home / 647,946.90-972,106.88-198,733.68

Finding the Fourth Proportional to 647,946.90, 972,106.88 and 198,733.68

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Solution

The fourth proportional to 647,946.90, 972,106.88 and 198,733.68 is: 298,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,946.90 : 972,106.88 = 198,733.68 : x
  2. Step 2: Convert to fraction form
    647,946.90/972,106.88 = 198,733.68/x
  3. Step 3: Cross multiply
    647,946.90x = 972,106.88 × 198,733.68
  4. Step 4: Simplify right side
    647,946.90x = 193,190,376,622.05
  5. Step 5: Solve for x
    x = 193,190,376,622.05/647,946.90
  6. Step 6: Final answer
    x = 298,157.73

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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.