Home / 2,158,508.24-2,978,746.36-1,191,639.20

Finding the Fourth Proportional to 2,158,508.24, 2,978,746.36 and 1,191,639.20

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Solution

The fourth proportional to 2,158,508.24, 2,978,746.36 and 1,191,639.20 is: 1,644,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,508.24 : 2,978,746.36 = 1,191,639.20 : x
  2. Step 2: Convert to fraction form
    2,158,508.24/2,978,746.36 = 1,191,639.20/x
  3. Step 3: Cross multiply
    2,158,508.24x = 2,978,746.36 × 1,191,639.20
  4. Step 4: Simplify right side
    2,158,508.24x = 3,549,590,929,433.31
  5. Step 5: Solve for x
    x = 3,549,590,929,433.31/2,158,508.24
  6. Step 6: Final answer
    x = 1,644,464.85

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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.