Home / 1,678,961.60-2,518,442.40-1,613,643.20

Finding the Fourth Proportional to 1,678,961.60, 2,518,442.40 and 1,613,643.20

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Solution

The fourth proportional to 1,678,961.60, 2,518,442.40 and 1,613,643.20 is: 2,420,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,961.60 : 2,518,442.40 = 1,613,643.20 : x
  2. Step 2: Convert to fraction form
    1,678,961.60/2,518,442.40 = 1,613,643.20/x
  3. Step 3: Cross multiply
    1,678,961.60x = 2,518,442.40 × 1,613,643.20
  4. Step 4: Simplify right side
    1,678,961.60x = 4,063,867,453,351.68
  5. Step 5: Solve for x
    x = 4,063,867,453,351.68/1,678,961.60
  6. Step 6: Final answer
    x = 2,420,464.80

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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.