Home / 2,158,437.36-2,978,626.86-1,191,568.98

Finding the Fourth Proportional to 2,158,437.36, 2,978,626.86 and 1,191,568.98

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Solution

The fourth proportional to 2,158,437.36, 2,978,626.86 and 1,191,568.98 is: 1,644,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,437.36 : 2,978,626.86 = 1,191,568.98 : x
  2. Step 2: Convert to fraction form
    2,158,437.36/2,978,626.86 = 1,191,568.98/x
  3. Step 3: Cross multiply
    2,158,437.36x = 2,978,626.86 × 1,191,568.98
  4. Step 4: Simplify right side
    2,158,437.36x = 3,549,239,369,370.80
  5. Step 5: Solve for x
    x = 3,549,239,369,370.80/2,158,437.36
  6. Step 6: Final answer
    x = 1,644,355.97

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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.