Home / 1,280,243.32-1,906,780.93-1,274,055.86

Finding the Fourth Proportional to 1,280,243.32, 1,906,780.93 and 1,274,055.86

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Solution

The fourth proportional to 1,280,243.32, 1,906,780.93 and 1,274,055.86 is: 1,897,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,243.32 : 1,906,780.93 = 1,274,055.86 : x
  2. Step 2: Convert to fraction form
    1,280,243.32/1,906,780.93 = 1,274,055.86/x
  3. Step 3: Cross multiply
    1,280,243.32x = 1,906,780.93 × 1,274,055.86
  4. Step 4: Simplify right side
    1,280,243.32x = 2,429,345,419,184.56
  5. Step 5: Solve for x
    x = 2,429,345,419,184.56/1,280,243.32
  6. Step 6: Final answer
    x = 1,897,565.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.