Home / 2,138,752.52-3,208,128.78-718,808.60

Finding the Fourth Proportional to 2,138,752.52, 3,208,128.78 and 718,808.60

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Solution

The fourth proportional to 2,138,752.52, 3,208,128.78 and 718,808.60 is: 1,078,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,752.52 : 3,208,128.78 = 718,808.60 : x
  2. Step 2: Convert to fraction form
    2,138,752.52/3,208,128.78 = 718,808.60/x
  3. Step 3: Cross multiply
    2,138,752.52x = 3,208,128.78 × 718,808.60
  4. Step 4: Simplify right side
    2,138,752.52x = 2,306,030,556,971.51
  5. Step 5: Solve for x
    x = 2,306,030,556,971.51/2,138,752.52
  6. Step 6: Final answer
    x = 1,078,212.90

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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.