Home / 2,158,306.36-2,978,463.29-1,191,437.30

Finding the Fourth Proportional to 2,158,306.36, 2,978,463.29 and 1,191,437.30

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Solution

The fourth proportional to 2,158,306.36, 2,978,463.29 and 1,191,437.30 is: 1,644,183.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,306.36 : 2,978,463.29 = 1,191,437.30 : x
  2. Step 2: Convert to fraction form
    2,158,306.36/2,978,463.29 = 1,191,437.30/x
  3. Step 3: Cross multiply
    2,158,306.36x = 2,978,463.29 × 1,191,437.30
  4. Step 4: Simplify right side
    2,158,306.36x = 3,548,652,261,875.69
  5. Step 5: Solve for x
    x = 3,548,652,261,875.69/2,158,306.36
  6. Step 6: Final answer
    x = 1,644,183.76

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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.