Home / 2,145,983.60-2,961,714.84-1,287,016.40

Finding the Fourth Proportional to 2,145,983.60, 2,961,714.84 and 1,287,016.40

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Solution

The fourth proportional to 2,145,983.60, 2,961,714.84 and 1,287,016.40 is: 1,776,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,983.60 : 2,961,714.84 = 1,287,016.40 : x
  2. Step 2: Convert to fraction form
    2,145,983.60/2,961,714.84 = 1,287,016.40/x
  3. Step 3: Cross multiply
    2,145,983.60x = 2,961,714.84 × 1,287,016.40
  4. Step 4: Simplify right side
    2,145,983.60x = 3,811,775,571,203.38
  5. Step 5: Solve for x
    x = 3,811,775,571,203.38/2,145,983.60
  6. Step 6: Final answer
    x = 1,776,237.05

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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.