Home / 1,619,844.80-2,430,458.40-777,963.20

Finding the Fourth Proportional to 1,619,844.80, 2,430,458.40 and 777,963.20

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Solution

The fourth proportional to 1,619,844.80, 2,430,458.40 and 777,963.20 is: 1,167,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,844.80 : 2,430,458.40 = 777,963.20 : x
  2. Step 2: Convert to fraction form
    1,619,844.80/2,430,458.40 = 777,963.20/x
  3. Step 3: Cross multiply
    1,619,844.80x = 2,430,458.40 × 777,963.20
  4. Step 4: Simplify right side
    1,619,844.80x = 1,890,807,194,330.88
  5. Step 5: Solve for x
    x = 1,890,807,194,330.88/1,619,844.80
  6. Step 6: Final answer
    x = 1,167,276.76

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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.