Home / 1,091,662.80-1,638,077.40-492,716.40

Finding the Fourth Proportional to 1,091,662.80, 1,638,077.40 and 492,716.40

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Solution

The fourth proportional to 1,091,662.80, 1,638,077.40 and 492,716.40 is: 739,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,662.80 : 1,638,077.40 = 492,716.40 : x
  2. Step 2: Convert to fraction form
    1,091,662.80/1,638,077.40 = 492,716.40/x
  3. Step 3: Cross multiply
    1,091,662.80x = 1,638,077.40 × 492,716.40
  4. Step 4: Simplify right side
    1,091,662.80x = 807,107,599,449.36
  5. Step 5: Solve for x
    x = 807,107,599,449.36/1,091,662.80
  6. Step 6: Final answer
    x = 739,337.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.