Home / 1,227,274.76-1,840,868.40-428,553.20

Finding the Fourth Proportional to 1,227,274.76, 1,840,868.40 and 428,553.20

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Solution

The fourth proportional to 1,227,274.76, 1,840,868.40 and 428,553.20 is: 642,814.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,274.76 : 1,840,868.40 = 428,553.20 : x
  2. Step 2: Convert to fraction form
    1,227,274.76/1,840,868.40 = 428,553.20/x
  3. Step 3: Cross multiply
    1,227,274.76x = 1,840,868.40 × 428,553.20
  4. Step 4: Simplify right side
    1,227,274.76x = 788,910,043,598.88
  5. Step 5: Solve for x
    x = 788,910,043,598.88/1,227,274.76
  6. Step 6: Final answer
    x = 642,814.53

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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.