Home / 2,112,365.86-2,915,065.66-1,145,495.90

Finding the Fourth Proportional to 2,112,365.86, 2,915,065.66 and 1,145,495.90

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Solution

The fourth proportional to 2,112,365.86, 2,915,065.66 and 1,145,495.90 is: 1,580,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,365.86 : 2,915,065.66 = 1,145,495.90 : x
  2. Step 2: Convert to fraction form
    2,112,365.86/2,915,065.66 = 1,145,495.90/x
  3. Step 3: Cross multiply
    2,112,365.86x = 2,915,065.66 × 1,145,495.90
  4. Step 4: Simplify right side
    2,112,365.86x = 3,339,195,750,049.21
  5. Step 5: Solve for x
    x = 3,339,195,750,049.21/2,112,365.86
  6. Step 6: Final answer
    x = 1,580,784.76

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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.