Home / 1,987,241.80-2,979,404.70-788,571.40

Finding the Fourth Proportional to 1,987,241.80, 2,979,404.70 and 788,571.40

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Solution

The fourth proportional to 1,987,241.80, 2,979,404.70 and 788,571.40 is: 1,182,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,241.80 : 2,979,404.70 = 788,571.40 : x
  2. Step 2: Convert to fraction form
    1,987,241.80/2,979,404.70 = 788,571.40/x
  3. Step 3: Cross multiply
    1,987,241.80x = 2,979,404.70 × 788,571.40
  4. Step 4: Simplify right side
    1,987,241.80x = 2,349,473,335,445.58
  5. Step 5: Solve for x
    x = 2,349,473,335,445.58/1,987,241.80
  6. Step 6: Final answer
    x = 1,182,278.54

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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.