Home / 1,342,839.81-2,014,617.72-489,990

Finding the Fourth Proportional to 1,342,839.81, 2,014,617.72 and 489,990

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Solution

The fourth proportional to 1,342,839.81, 2,014,617.72 and 489,990 is: 735,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,839.81 : 2,014,617.72 = 489,990 : x
  2. Step 2: Convert to fraction form
    1,342,839.81/2,014,617.72 = 489,990/x
  3. Step 3: Cross multiply
    1,342,839.81x = 2,014,617.72 × 489,990
  4. Step 4: Simplify right side
    1,342,839.81x = 987,142,536,622.80
  5. Step 5: Solve for x
    x = 987,142,536,622.80/1,342,839.81
  6. Step 6: Final answer
    x = 735,115.63

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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.