Home / 919,292.40-1,267,577.40-647,273.28

Finding the Fourth Proportional to 919,292.40, 1,267,577.40 and 647,273.28

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Solution

The fourth proportional to 919,292.40, 1,267,577.40 and 647,273.28 is: 892,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,292.40 : 1,267,577.40 = 647,273.28 : x
  2. Step 2: Convert to fraction form
    919,292.40/1,267,577.40 = 647,273.28/x
  3. Step 3: Cross multiply
    919,292.40x = 1,267,577.40 × 647,273.28
  4. Step 4: Simplify right side
    919,292.40x = 820,468,981,351.87
  5. Step 5: Solve for x
    x = 820,468,981,351.87/919,292.40
  6. Step 6: Final answer
    x = 892,500.56

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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.