Home / 2,167,647.21-2,991,313.98-1,200,774.51

Finding the Fourth Proportional to 2,167,647.21, 2,991,313.98 and 1,200,774.51

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Solution

The fourth proportional to 2,167,647.21, 2,991,313.98 and 1,200,774.51 is: 1,657,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,647.21 : 2,991,313.98 = 1,200,774.51 : x
  2. Step 2: Convert to fraction form
    2,167,647.21/2,991,313.98 = 1,200,774.51/x
  3. Step 3: Cross multiply
    2,167,647.21x = 2,991,313.98 × 1,200,774.51
  4. Step 4: Simplify right side
    2,167,647.21x = 3,591,893,578,590.65
  5. Step 5: Solve for x
    x = 3,591,893,578,590.65/2,167,647.21
  6. Step 6: Final answer
    x = 1,657,047.13

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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.