Home / 2,578,805.16-3,868,236.90-781,674.36

Finding the Fourth Proportional to 2,578,805.16, 3,868,236.90 and 781,674.36

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Solution

The fourth proportional to 2,578,805.16, 3,868,236.90 and 781,674.36 is: 1,172,520.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,805.16 : 3,868,236.90 = 781,674.36 : x
  2. Step 2: Convert to fraction form
    2,578,805.16/3,868,236.90 = 781,674.36/x
  3. Step 3: Cross multiply
    2,578,805.16x = 3,868,236.90 × 781,674.36
  4. Step 4: Simplify right side
    2,578,805.16x = 3,023,701,603,135.88
  5. Step 5: Solve for x
    x = 3,023,701,603,135.88/2,578,805.16
  6. Step 6: Final answer
    x = 1,172,520.38

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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.