Home / 2,166,285.60-2,989,567.56-1,199,415.87

Finding the Fourth Proportional to 2,166,285.60, 2,989,567.56 and 1,199,415.87

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Solution

The fourth proportional to 2,166,285.60, 2,989,567.56 and 1,199,415.87 is: 1,655,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,285.60 : 2,989,567.56 = 1,199,415.87 : x
  2. Step 2: Convert to fraction form
    2,166,285.60/2,989,567.56 = 1,199,415.87/x
  3. Step 3: Cross multiply
    2,166,285.60x = 2,989,567.56 × 1,199,415.87
  4. Step 4: Simplify right side
    2,166,285.60x = 3,585,734,775,901.18
  5. Step 5: Solve for x
    x = 3,585,734,775,901.18/2,166,285.60
  6. Step 6: Final answer
    x = 1,655,245.63

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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.