Home / 986,567.33-1,361,577.78-820,702.28

Finding the Fourth Proportional to 986,567.33, 1,361,577.78 and 820,702.28

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Solution

The fourth proportional to 986,567.33, 1,361,577.78 and 820,702.28 is: 1,132,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,567.33 : 1,361,577.78 = 820,702.28 : x
  2. Step 2: Convert to fraction form
    986,567.33/1,361,577.78 = 820,702.28/x
  3. Step 3: Cross multiply
    986,567.33x = 1,361,577.78 × 820,702.28
  4. Step 4: Simplify right side
    986,567.33x = 1,117,449,981,635.45
  5. Step 5: Solve for x
    x = 1,117,449,981,635.45/986,567.33
  6. Step 6: Final answer
    x = 1,132,664.70

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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.