Home / 814,093.80-1,221,140.70-340,729.80

Finding the Fourth Proportional to 814,093.80, 1,221,140.70 and 340,729.80

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Solution

The fourth proportional to 814,093.80, 1,221,140.70 and 340,729.80 is: 511,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,093.80 : 1,221,140.70 = 340,729.80 : x
  2. Step 2: Convert to fraction form
    814,093.80/1,221,140.70 = 340,729.80/x
  3. Step 3: Cross multiply
    814,093.80x = 1,221,140.70 × 340,729.80
  4. Step 4: Simplify right side
    814,093.80x = 416,079,026,482.86
  5. Step 5: Solve for x
    x = 416,079,026,482.86/814,093.80
  6. Step 6: Final answer
    x = 511,094.70

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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.