Home / 2,102,397.60-3,149,967.60-978,160.80

Finding the Fourth Proportional to 2,102,397.60, 3,149,967.60 and 978,160.80

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Solution

The fourth proportional to 2,102,397.60, 3,149,967.60 and 978,160.80 is: 1,465,552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,397.60 : 3,149,967.60 = 978,160.80 : x
  2. Step 2: Convert to fraction form
    2,102,397.60/3,149,967.60 = 978,160.80/x
  3. Step 3: Cross multiply
    2,102,397.60x = 3,149,967.60 × 978,160.80
  4. Step 4: Simplify right side
    2,102,397.60x = 3,081,174,827,590.08
  5. Step 5: Solve for x
    x = 3,081,174,827,590.08/2,102,397.60
  6. Step 6: Final answer
    x = 1,465,552.87

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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.