Home / 874,213.20-1,206,510.12-551,906.64

Finding the Fourth Proportional to 874,213.20, 1,206,510.12 and 551,906.64

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Solution

The fourth proportional to 874,213.20, 1,206,510.12 and 551,906.64 is: 761,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,213.20 : 1,206,510.12 = 551,906.64 : x
  2. Step 2: Convert to fraction form
    874,213.20/1,206,510.12 = 551,906.64/x
  3. Step 3: Cross multiply
    874,213.20x = 1,206,510.12 × 551,906.64
  4. Step 4: Simplify right side
    874,213.20x = 665,880,946,455.20
  5. Step 5: Solve for x
    x = 665,880,946,455.20/874,213.20
  6. Step 6: Final answer
    x = 761,691.71

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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.