Home / 2,157,772.20-2,977,710.97-1,190,902.47

Finding the Fourth Proportional to 2,157,772.20, 2,977,710.97 and 1,190,902.47

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Solution

The fourth proportional to 2,157,772.20, 2,977,710.97 and 1,190,902.47 is: 1,643,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,772.20 : 2,977,710.97 = 1,190,902.47 : x
  2. Step 2: Convert to fraction form
    2,157,772.20/2,977,710.97 = 1,190,902.47/x
  3. Step 3: Cross multiply
    2,157,772.20x = 2,977,710.97 × 1,190,902.47
  4. Step 4: Simplify right side
    2,157,772.20x = 3,546,163,349,119.10
  5. Step 5: Solve for x
    x = 3,546,163,349,119.10/2,157,772.20
  6. Step 6: Final answer
    x = 1,643,437.31

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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.