Home / 1,143,389.50-1,577,879.76-627,147.60

Finding the Fourth Proportional to 1,143,389.50, 1,577,879.76 and 627,147.60

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Solution

The fourth proportional to 1,143,389.50, 1,577,879.76 and 627,147.60 is: 865,464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,389.50 : 1,577,879.76 = 627,147.60 : x
  2. Step 2: Convert to fraction form
    1,143,389.50/1,577,879.76 = 627,147.60/x
  3. Step 3: Cross multiply
    1,143,389.50x = 1,577,879.76 × 627,147.60
  4. Step 4: Simplify right side
    1,143,389.50x = 989,563,504,572.58
  5. Step 5: Solve for x
    x = 989,563,504,572.58/1,143,389.50
  6. Step 6: Final answer
    x = 865,464.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.