Home / 2,138,751.52-3,208,127.28-718,807.60

Finding the Fourth Proportional to 2,138,751.52, 3,208,127.28 and 718,807.60

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Solution

The fourth proportional to 2,138,751.52, 3,208,127.28 and 718,807.60 is: 1,078,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,751.52 : 3,208,127.28 = 718,807.60 : x
  2. Step 2: Convert to fraction form
    2,138,751.52/3,208,127.28 = 718,807.60/x
  3. Step 3: Cross multiply
    2,138,751.52x = 3,208,127.28 × 718,807.60
  4. Step 4: Simplify right side
    2,138,751.52x = 2,306,026,270,631.33
  5. Step 5: Solve for x
    x = 2,306,026,270,631.33/2,138,751.52
  6. Step 6: Final answer
    x = 1,078,211.40

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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.