Home / 1,128,052.90-1,692,079.35-792,129.70

Finding the Fourth Proportional to 1,128,052.90, 1,692,079.35 and 792,129.70

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Solution

The fourth proportional to 1,128,052.90, 1,692,079.35 and 792,129.70 is: 1,188,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,052.90 : 1,692,079.35 = 792,129.70 : x
  2. Step 2: Convert to fraction form
    1,128,052.90/1,692,079.35 = 792,129.70/x
  3. Step 3: Cross multiply
    1,128,052.90x = 1,692,079.35 × 792,129.70
  4. Step 4: Simplify right side
    1,128,052.90x = 1,340,346,307,891.70
  5. Step 5: Solve for x
    x = 1,340,346,307,891.70/1,128,052.90
  6. Step 6: Final answer
    x = 1,188,194.55

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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.