Home / 1,489,435.20-2,234,152.80-892,238.40

Finding the Fourth Proportional to 1,489,435.20, 2,234,152.80 and 892,238.40

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Solution

The fourth proportional to 1,489,435.20, 2,234,152.80 and 892,238.40 is: 1,338,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,435.20 : 2,234,152.80 = 892,238.40 : x
  2. Step 2: Convert to fraction form
    1,489,435.20/2,234,152.80 = 892,238.40/x
  3. Step 3: Cross multiply
    1,489,435.20x = 2,234,152.80 × 892,238.40
  4. Step 4: Simplify right side
    1,489,435.20x = 1,993,396,919,627.52
  5. Step 5: Solve for x
    x = 1,993,396,919,627.52/1,489,435.20
  6. Step 6: Final answer
    x = 1,338,357.60

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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.