Home / 1,377,991.70-2,067,052.35-431,393.30

Finding the Fourth Proportional to 1,377,991.70, 2,067,052.35 and 431,393.30

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Solution

The fourth proportional to 1,377,991.70, 2,067,052.35 and 431,393.30 is: 647,110.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,991.70 : 2,067,052.35 = 431,393.30 : x
  2. Step 2: Convert to fraction form
    1,377,991.70/2,067,052.35 = 431,393.30/x
  3. Step 3: Cross multiply
    1,377,991.70x = 2,067,052.35 × 431,393.30
  4. Step 4: Simplify right side
    1,377,991.70x = 891,712,534,539.26
  5. Step 5: Solve for x
    x = 891,712,534,539.26/1,377,991.70
  6. Step 6: Final answer
    x = 647,110.24

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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.