Home / 1,392,895.53-1,922,594.43-820,267.86

Finding the Fourth Proportional to 1,392,895.53, 1,922,594.43 and 820,267.86

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Solution

The fourth proportional to 1,392,895.53, 1,922,594.43 and 820,267.86 is: 1,132,204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,895.53 : 1,922,594.43 = 820,267.86 : x
  2. Step 2: Convert to fraction form
    1,392,895.53/1,922,594.43 = 820,267.86/x
  3. Step 3: Cross multiply
    1,392,895.53x = 1,922,594.43 × 820,267.86
  4. Step 4: Simplify right side
    1,392,895.53x = 1,577,042,418,744.02
  5. Step 5: Solve for x
    x = 1,577,042,418,744.02/1,392,895.53
  6. Step 6: Final answer
    x = 1,132,204.38

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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.