Home / 994,021.80-1,491,032.70-917,039.40

Finding the Fourth Proportional to 994,021.80, 1,491,032.70 and 917,039.40

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Solution

The fourth proportional to 994,021.80, 1,491,032.70 and 917,039.40 is: 1,375,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,021.80 : 1,491,032.70 = 917,039.40 : x
  2. Step 2: Convert to fraction form
    994,021.80/1,491,032.70 = 917,039.40/x
  3. Step 3: Cross multiply
    994,021.80x = 1,491,032.70 × 917,039.40
  4. Step 4: Simplify right side
    994,021.80x = 1,367,335,732,588.38
  5. Step 5: Solve for x
    x = 1,367,335,732,588.38/994,021.80
  6. Step 6: Final answer
    x = 1,375,559.10

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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.