Home / 994,071.80-1,491,107.70-917,089.40

Finding the Fourth Proportional to 994,071.80, 1,491,107.70 and 917,089.40

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Solution

The fourth proportional to 994,071.80, 1,491,107.70 and 917,089.40 is: 1,375,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,071.80 : 1,491,107.70 = 917,089.40 : x
  2. Step 2: Convert to fraction form
    994,071.80/1,491,107.70 = 917,089.40/x
  3. Step 3: Cross multiply
    994,071.80x = 1,491,107.70 × 917,089.40
  4. Step 4: Simplify right side
    994,071.80x = 1,367,479,065,928.38
  5. Step 5: Solve for x
    x = 1,367,479,065,928.38/994,071.80
  6. Step 6: Final answer
    x = 1,375,634.10

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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.