Home / 1,280,057.06-1,765,152.86-1,099,366.58

Finding the Fourth Proportional to 1,280,057.06, 1,765,152.86 and 1,099,366.58

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Solution

The fourth proportional to 1,280,057.06, 1,765,152.86 and 1,099,366.58 is: 1,515,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,057.06 : 1,765,152.86 = 1,099,366.58 : x
  2. Step 2: Convert to fraction form
    1,280,057.06/1,765,152.86 = 1,099,366.58/x
  3. Step 3: Cross multiply
    1,280,057.06x = 1,765,152.86 × 1,099,366.58
  4. Step 4: Simplify right side
    1,280,057.06x = 1,940,550,062,875.42
  5. Step 5: Solve for x
    x = 1,940,550,062,875.42/1,280,057.06
  6. Step 6: Final answer
    x = 1,515,987.16

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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.