Home / 2,319,611.78-3,201,081.32-1,287,123.62

Finding the Fourth Proportional to 2,319,611.78, 3,201,081.32 and 1,287,123.62

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Solution

The fourth proportional to 2,319,611.78, 3,201,081.32 and 1,287,123.62 is: 1,776,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319,611.78 : 3,201,081.32 = 1,287,123.62 : x
  2. Step 2: Convert to fraction form
    2,319,611.78/3,201,081.32 = 1,287,123.62/x
  3. Step 3: Cross multiply
    2,319,611.78x = 3,201,081.32 × 1,287,123.62
  4. Step 4: Simplify right side
    2,319,611.78x = 4,120,187,363,725.18
  5. Step 5: Solve for x
    x = 4,120,187,363,725.18/2,319,611.78
  6. Step 6: Final answer
    x = 1,776,240.06

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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.