Home / 2,686,139.20-4,026,098.40-1,087,652.80

Finding the Fourth Proportional to 2,686,139.20, 4,026,098.40 and 1,087,652.80

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Solution

The fourth proportional to 2,686,139.20, 4,026,098.40 and 1,087,652.80 is: 1,630,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,139.20 : 4,026,098.40 = 1,087,652.80 : x
  2. Step 2: Convert to fraction form
    2,686,139.20/4,026,098.40 = 1,087,652.80/x
  3. Step 3: Cross multiply
    2,686,139.20x = 4,026,098.40 × 1,087,652.80
  4. Step 4: Simplify right side
    2,686,139.20x = 4,378,997,197,835.52
  5. Step 5: Solve for x
    x = 4,378,997,197,835.52/2,686,139.20
  6. Step 6: Final answer
    x = 1,630,219.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.