Home / 1,325,138.60-1,987,707.90-614,930.60

Finding the Fourth Proportional to 1,325,138.60, 1,987,707.90 and 614,930.60

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Solution

The fourth proportional to 1,325,138.60, 1,987,707.90 and 614,930.60 is: 922,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,138.60 : 1,987,707.90 = 614,930.60 : x
  2. Step 2: Convert to fraction form
    1,325,138.60/1,987,707.90 = 614,930.60/x
  3. Step 3: Cross multiply
    1,325,138.60x = 1,987,707.90 × 614,930.60
  4. Step 4: Simplify right side
    1,325,138.60x = 1,222,302,411,571.74
  5. Step 5: Solve for x
    x = 1,222,302,411,571.74/1,325,138.60
  6. Step 6: Final answer
    x = 922,395.90

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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.