Home / 989,559.20-1,365,720.33-554,142.33

Finding the Fourth Proportional to 989,559.20, 1,365,720.33 and 554,142.33

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Solution

The fourth proportional to 989,559.20, 1,365,720.33 and 554,142.33 is: 764,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,559.20 : 1,365,720.33 = 554,142.33 : x
  2. Step 2: Convert to fraction form
    989,559.20/1,365,720.33 = 554,142.33/x
  3. Step 3: Cross multiply
    989,559.20x = 1,365,720.33 × 554,142.33
  4. Step 4: Simplify right side
    989,559.20x = 756,803,445,794.57
  5. Step 5: Solve for x
    x = 756,803,445,794.57/989,559.20
  6. Step 6: Final answer
    x = 764,788.45

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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.