Home / 2,178,102.69-3,005,341.25-1,272,509.73

Finding the Fourth Proportional to 2,178,102.69, 3,005,341.25 and 1,272,509.73

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Solution

The fourth proportional to 2,178,102.69, 3,005,341.25 and 1,272,509.73 is: 1,755,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,102.69 : 3,005,341.25 = 1,272,509.73 : x
  2. Step 2: Convert to fraction form
    2,178,102.69/3,005,341.25 = 1,272,509.73/x
  3. Step 3: Cross multiply
    2,178,102.69x = 3,005,341.25 × 1,272,509.73
  4. Step 4: Simplify right side
    2,178,102.69x = 3,824,325,976,232.81
  5. Step 5: Solve for x
    x = 3,824,325,976,232.81/2,178,102.69
  6. Step 6: Final answer
    x = 1,755,806.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.