Home / 642,940.60-887,286.83-367,322.55

Finding the Fourth Proportional to 642,940.60, 887,286.83 and 367,322.55

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Solution

The fourth proportional to 642,940.60, 887,286.83 and 367,322.55 is: 506,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,940.60 : 887,286.83 = 367,322.55 : x
  2. Step 2: Convert to fraction form
    642,940.60/887,286.83 = 367,322.55/x
  3. Step 3: Cross multiply
    642,940.60x = 887,286.83 × 367,322.55
  4. Step 4: Simplify right side
    642,940.60x = 325,920,459,140.40
  5. Step 5: Solve for x
    x = 325,920,459,140.40/642,940.60
  6. Step 6: Final answer
    x = 506,921.58

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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.