Home / 2,145,100.40-3,218,082.60-628,780.40

Finding the Fourth Proportional to 2,145,100.40, 3,218,082.60 and 628,780.40

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Solution

The fourth proportional to 2,145,100.40, 3,218,082.60 and 628,780.40 is: 943,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,100.40 : 3,218,082.60 = 628,780.40 : x
  2. Step 2: Convert to fraction form
    2,145,100.40/3,218,082.60 = 628,780.40/x
  3. Step 3: Cross multiply
    2,145,100.40x = 3,218,082.60 × 628,780.40
  4. Step 4: Simplify right side
    2,145,100.40x = 2,023,467,264,461.04
  5. Step 5: Solve for x
    x = 2,023,467,264,461.04/2,145,100.40
  6. Step 6: Final answer
    x = 943,297.23

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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.