Home / 1,690,642.80-2,333,050.08-926,679.84

Finding the Fourth Proportional to 1,690,642.80, 2,333,050.08 and 926,679.84

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Solution

The fourth proportional to 1,690,642.80, 2,333,050.08 and 926,679.84 is: 1,278,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,642.80 : 2,333,050.08 = 926,679.84 : x
  2. Step 2: Convert to fraction form
    1,690,642.80/2,333,050.08 = 926,679.84/x
  3. Step 3: Cross multiply
    1,690,642.80x = 2,333,050.08 × 926,679.84
  4. Step 4: Simplify right side
    1,690,642.80x = 2,161,990,474,846.39
  5. Step 5: Solve for x
    x = 2,161,990,474,846.39/1,690,642.80
  6. Step 6: Final answer
    x = 1,278,797.91

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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.