Home / 931,279.60-1,396,919.40-647,844.40

Finding the Fourth Proportional to 931,279.60, 1,396,919.40 and 647,844.40

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Solution

The fourth proportional to 931,279.60, 1,396,919.40 and 647,844.40 is: 971,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,279.60 : 1,396,919.40 = 647,844.40 : x
  2. Step 2: Convert to fraction form
    931,279.60/1,396,919.40 = 647,844.40/x
  3. Step 3: Cross multiply
    931,279.60x = 1,396,919.40 × 647,844.40
  4. Step 4: Simplify right side
    931,279.60x = 904,986,410,541.36
  5. Step 5: Solve for x
    x = 904,986,410,541.36/931,279.60
  6. Step 6: Final answer
    x = 971,766.60

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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.