Home / 787,264.09-1,086,528.59-443,166.64

Finding the Fourth Proportional to 787,264.09, 1,086,528.59 and 443,166.64

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Solution

The fourth proportional to 787,264.09, 1,086,528.59 and 443,166.64 is: 611,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,264.09 : 1,086,528.59 = 443,166.64 : x
  2. Step 2: Convert to fraction form
    787,264.09/1,086,528.59 = 443,166.64/x
  3. Step 3: Cross multiply
    787,264.09x = 1,086,528.59 × 443,166.64
  4. Step 4: Simplify right side
    787,264.09x = 481,513,224,494.24
  5. Step 5: Solve for x
    x = 481,513,224,494.24/787,264.09
  6. Step 6: Final answer
    x = 611,628.59

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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.