Home / 2,126,784.80-2,934,747.60-1,310,857.76

Finding the Fourth Proportional to 2,126,784.80, 2,934,747.60 and 1,310,857.76

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Solution

The fourth proportional to 2,126,784.80, 2,934,747.60 and 1,310,857.76 is: 1,808,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,784.80 : 2,934,747.60 = 1,310,857.76 : x
  2. Step 2: Convert to fraction form
    2,126,784.80/2,934,747.60 = 1,310,857.76/x
  3. Step 3: Cross multiply
    2,126,784.80x = 2,934,747.60 × 1,310,857.76
  4. Step 4: Simplify right side
    2,126,784.80x = 3,847,036,665,101.38
  5. Step 5: Solve for x
    x = 3,847,036,665,101.38/2,126,784.80
  6. Step 6: Final answer
    x = 1,808,850.93

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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.