Home / 815,338.58-1,223,068.06-216,286.50

Finding the Fourth Proportional to 815,338.58, 1,223,068.06 and 216,286.50

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Solution

The fourth proportional to 815,338.58, 1,223,068.06 and 216,286.50 is: 324,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,338.58 : 1,223,068.06 = 216,286.50 : x
  2. Step 2: Convert to fraction form
    815,338.58/1,223,068.06 = 216,286.50/x
  3. Step 3: Cross multiply
    815,338.58x = 1,223,068.06 × 216,286.50
  4. Step 4: Simplify right side
    815,338.58x = 264,533,109,959.19
  5. Step 5: Solve for x
    x = 264,533,109,959.19/815,338.58
  6. Step 6: Final answer
    x = 324,445.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.