Home / 1,690,326.40-2,332,637.04-926,378.16

Finding the Fourth Proportional to 1,690,326.40, 2,332,637.04 and 926,378.16

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Solution

The fourth proportional to 1,690,326.40, 2,332,637.04 and 926,378.16 is: 1,278,394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,326.40 : 2,332,637.04 = 926,378.16 : x
  2. Step 2: Convert to fraction form
    1,690,326.40/2,332,637.04 = 926,378.16/x
  3. Step 3: Cross multiply
    1,690,326.40x = 2,332,637.04 × 926,378.16
  4. Step 4: Simplify right side
    1,690,326.40x = 2,160,904,009,063.05
  5. Step 5: Solve for x
    x = 2,160,904,009,063.05/1,690,326.40
  6. Step 6: Final answer
    x = 1,278,394.52

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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.