Home / 1,557,917.64-2,149,932.81-842,525.64

Finding the Fourth Proportional to 1,557,917.64, 2,149,932.81 and 842,525.64

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Solution

The fourth proportional to 1,557,917.64, 2,149,932.81 and 842,525.64 is: 1,162,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,917.64 : 2,149,932.81 = 842,525.64 : x
  2. Step 2: Convert to fraction form
    1,557,917.64/2,149,932.81 = 842,525.64/x
  3. Step 3: Cross multiply
    1,557,917.64x = 2,149,932.81 × 842,525.64
  4. Step 4: Simplify right side
    1,557,917.64x = 1,811,373,516,702.25
  5. Step 5: Solve for x
    x = 1,811,373,516,702.25/1,557,917.64
  6. Step 6: Final answer
    x = 1,162,688.88

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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.