Home / 2,157,772.51-2,977,711.38-1,190,902.78

Finding the Fourth Proportional to 2,157,772.51, 2,977,711.38 and 1,190,902.78

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Solution

The fourth proportional to 2,157,772.51, 2,977,711.38 and 1,190,902.78 is: 1,643,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,772.51 : 2,977,711.38 = 1,190,902.78 : x
  2. Step 2: Convert to fraction form
    2,157,772.51/2,977,711.38 = 1,190,902.78/x
  3. Step 3: Cross multiply
    2,157,772.51x = 2,977,711.38 × 1,190,902.78
  4. Step 4: Simplify right side
    2,157,772.51x = 3,546,164,760,479.64
  5. Step 5: Solve for x
    x = 3,546,164,760,479.64/2,157,772.51
  6. Step 6: Final answer
    x = 1,643,437.73

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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.