Home / 2,578,804.66-3,868,236.15-781,673.86

Finding the Fourth Proportional to 2,578,804.66, 3,868,236.15 and 781,673.86

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Solution

The fourth proportional to 2,578,804.66, 3,868,236.15 and 781,673.86 is: 1,172,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,804.66 : 3,868,236.15 = 781,673.86 : x
  2. Step 2: Convert to fraction form
    2,578,804.66/3,868,236.15 = 781,673.86/x
  3. Step 3: Cross multiply
    2,578,804.66x = 3,868,236.15 × 781,673.86
  4. Step 4: Simplify right side
    2,578,804.66x = 3,023,699,082,762.04
  5. Step 5: Solve for x
    x = 3,023,699,082,762.04/2,578,804.66
  6. Step 6: Final answer
    x = 1,172,519.63

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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.