Home / 1,396,391.60-2,094,587.40-686,272.70

Finding the Fourth Proportional to 1,396,391.60, 2,094,587.40 and 686,272.70

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Solution

The fourth proportional to 1,396,391.60, 2,094,587.40 and 686,272.70 is: 1,029,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,391.60 : 2,094,587.40 = 686,272.70 : x
  2. Step 2: Convert to fraction form
    1,396,391.60/2,094,587.40 = 686,272.70/x
  3. Step 3: Cross multiply
    1,396,391.60x = 2,094,587.40 × 686,272.70
  4. Step 4: Simplify right side
    1,396,391.60x = 1,437,458,150,383.98
  5. Step 5: Solve for x
    x = 1,437,458,150,383.98/1,396,391.60
  6. Step 6: Final answer
    x = 1,029,409.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.