Home / 1,690,400.22-2,332,646.55-926,399.58

Finding the Fourth Proportional to 1,690,400.22, 2,332,646.55 and 926,399.58

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Solution

The fourth proportional to 1,690,400.22, 2,332,646.55 and 926,399.58 is: 1,278,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,400.22 : 2,332,646.55 = 926,399.58 : x
  2. Step 2: Convert to fraction form
    1,690,400.22/2,332,646.55 = 926,399.58/x
  3. Step 3: Cross multiply
    1,690,400.22x = 2,332,646.55 × 926,399.58
  4. Step 4: Simplify right side
    1,690,400.22x = 2,160,962,784,208.45
  5. Step 5: Solve for x
    x = 2,160,962,784,208.45/1,690,400.22
  6. Step 6: Final answer
    x = 1,278,373.46

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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.