Home / 787,290.27-1,086,495.16-443,148.43

Finding the Fourth Proportional to 787,290.27, 1,086,495.16 and 443,148.43

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Solution

The fourth proportional to 787,290.27, 1,086,495.16 and 443,148.43 is: 611,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,290.27 : 1,086,495.16 = 443,148.43 : x
  2. Step 2: Convert to fraction form
    787,290.27/1,086,495.16 = 443,148.43/x
  3. Step 3: Cross multiply
    787,290.27x = 1,086,495.16 × 443,148.43
  4. Step 4: Simplify right side
    787,290.27x = 481,478,624,356.60
  5. Step 5: Solve for x
    x = 481,478,624,356.60/787,290.27
  6. Step 6: Final answer
    x = 611,564.30

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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.