Home / 1,891,242.40-2,837,122.80-628,938.40

Finding the Fourth Proportional to 1,891,242.40, 2,837,122.80 and 628,938.40

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Solution

The fourth proportional to 1,891,242.40, 2,837,122.80 and 628,938.40 is: 943,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,242.40 : 2,837,122.80 = 628,938.40 : x
  2. Step 2: Convert to fraction form
    1,891,242.40/2,837,122.80 = 628,938.40/x
  3. Step 3: Cross multiply
    1,891,242.40x = 2,837,122.80 × 628,938.40
  4. Step 4: Simplify right side
    1,891,242.40x = 1,784,375,474,435.52
  5. Step 5: Solve for x
    x = 1,784,375,474,435.52/1,891,242.40
  6. Step 6: Final answer
    x = 943,493.80

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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.