Home / 2,979,078.12-4,111,430.40-1,755,777.56

Finding the Fourth Proportional to 2,979,078.12, 4,111,430.40 and 1,755,777.56

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Solution

The fourth proportional to 2,979,078.12, 4,111,430.40 and 1,755,777.56 is: 2,423,151.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,078.12 : 4,111,430.40 = 1,755,777.56 : x
  2. Step 2: Convert to fraction form
    2,979,078.12/4,111,430.40 = 1,755,777.56/x
  3. Step 3: Cross multiply
    2,979,078.12x = 4,111,430.40 × 1,755,777.56
  4. Step 4: Simplify right side
    2,979,078.12x = 7,218,757,235,821.82
  5. Step 5: Solve for x
    x = 7,218,757,235,821.82/2,979,078.12
  6. Step 6: Final answer
    x = 2,423,151.37

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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.