Home / 2,181,000-3,009,846.88-1,187,633.60

Finding the Fourth Proportional to 2,181,000, 3,009,846.88 and 1,187,633.60

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Solution

The fourth proportional to 2,181,000, 3,009,846.88 and 1,187,633.60 is: 1,638,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181,000 : 3,009,846.88 = 1,187,633.60 : x
  2. Step 2: Convert to fraction form
    2,181,000/3,009,846.88 = 1,187,633.60/x
  3. Step 3: Cross multiply
    2,181,000x = 3,009,846.88 × 1,187,633.60
  4. Step 4: Simplify right side
    2,181,000x = 3,574,595,285,543.17
  5. Step 5: Solve for x
    x = 3,574,595,285,543.17/2,181,000
  6. Step 6: Final answer
    x = 1,638,970.79

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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.