Home / 1,690,328.40-2,332,639.80-926,380.14

Finding the Fourth Proportional to 1,690,328.40, 2,332,639.80 and 926,380.14

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Solution

The fourth proportional to 1,690,328.40, 2,332,639.80 and 926,380.14 is: 1,278,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,328.40 : 2,332,639.80 = 926,380.14 : x
  2. Step 2: Convert to fraction form
    1,690,328.40/2,332,639.80 = 926,380.14/x
  3. Step 3: Cross multiply
    1,690,328.40x = 2,332,639.80 × 926,380.14
  4. Step 4: Simplify right side
    1,690,328.40x = 2,160,911,184,493.57
  5. Step 5: Solve for x
    x = 2,160,911,184,493.57/1,690,328.40
  6. Step 6: Final answer
    x = 1,278,397.25

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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.