Home / 647,943.49-972,101.76-198,730.27

Finding the Fourth Proportional to 647,943.49, 972,101.76 and 198,730.27

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Solution

The fourth proportional to 647,943.49, 972,101.76 and 198,730.27 is: 298,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,943.49 : 972,101.76 = 198,730.27 : x
  2. Step 2: Convert to fraction form
    647,943.49/972,101.76 = 198,730.27/x
  3. Step 3: Cross multiply
    647,943.49x = 972,101.76 × 198,730.27
  4. Step 4: Simplify right side
    647,943.49x = 193,186,045,232.28
  5. Step 5: Solve for x
    x = 193,186,045,232.28/647,943.49
  6. Step 6: Final answer
    x = 298,152.61

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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.