Home / 1,989,937.99-2,984,615.38-978,788.53

Finding the Fourth Proportional to 1,989,937.99, 2,984,615.38 and 978,788.53

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Solution

The fourth proportional to 1,989,937.99, 2,984,615.38 and 978,788.53 is: 1,468,039.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,937.99 : 2,984,615.38 = 978,788.53 : x
  2. Step 2: Convert to fraction form
    1,989,937.99/2,984,615.38 = 978,788.53/x
  3. Step 3: Cross multiply
    1,989,937.99x = 2,984,615.38 × 978,788.53
  4. Step 4: Simplify right side
    1,989,937.99x = 2,921,307,300,405.59
  5. Step 5: Solve for x
    x = 2,921,307,300,405.59/1,989,937.99
  6. Step 6: Final answer
    x = 1,468,039.36

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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.