Home / 1,227,296.39-1,840,900.84-428,574.83

Finding the Fourth Proportional to 1,227,296.39, 1,840,900.84 and 428,574.83

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Solution

The fourth proportional to 1,227,296.39, 1,840,900.84 and 428,574.83 is: 642,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,296.39 : 1,840,900.84 = 428,574.83 : x
  2. Step 2: Convert to fraction form
    1,227,296.39/1,840,900.84 = 428,574.83/x
  3. Step 3: Cross multiply
    1,227,296.39x = 1,840,900.84 × 428,574.83
  4. Step 4: Simplify right side
    1,227,296.39x = 788,963,754,273.92
  5. Step 5: Solve for x
    x = 788,963,754,273.92/1,227,296.39
  6. Step 6: Final answer
    x = 642,846.96

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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.