Home / 1,919,195.51-2,878,796.90-499,249.31

Finding the Fourth Proportional to 1,919,195.51, 2,878,796.90 and 499,249.31

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Solution

The fourth proportional to 1,919,195.51, 2,878,796.90 and 499,249.31 is: 748,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,195.51 : 2,878,796.90 = 499,249.31 : x
  2. Step 2: Convert to fraction form
    1,919,195.51/2,878,796.90 = 499,249.31/x
  3. Step 3: Cross multiply
    1,919,195.51x = 2,878,796.90 × 499,249.31
  4. Step 4: Simplify right side
    1,919,195.51x = 1,437,237,352,809.28
  5. Step 5: Solve for x
    x = 1,437,237,352,809.28/1,919,195.51
  6. Step 6: Final answer
    x = 748,874.91

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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.