Home / 1,227,009.06-1,840,612.01-428,272.92

Finding the Fourth Proportional to 1,227,009.06, 1,840,612.01 and 428,272.92

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Solution

The fourth proportional to 1,227,009.06, 1,840,612.01 and 428,272.92 is: 642,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,009.06 : 1,840,612.01 = 428,272.92 : x
  2. Step 2: Convert to fraction form
    1,227,009.06/1,840,612.01 = 428,272.92/x
  3. Step 3: Cross multiply
    1,227,009.06x = 1,840,612.01 × 428,272.92
  4. Step 4: Simplify right side
    1,227,009.06x = 788,284,277,968.41
  5. Step 5: Solve for x
    x = 788,284,277,968.41/1,227,009.06
  6. Step 6: Final answer
    x = 642,443.73

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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.