Home / 1,091,664.80-1,638,080.40-492,718.40

Finding the Fourth Proportional to 1,091,664.80, 1,638,080.40 and 492,718.40

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Solution

The fourth proportional to 1,091,664.80, 1,638,080.40 and 492,718.40 is: 739,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,664.80 : 1,638,080.40 = 492,718.40 : x
  2. Step 2: Convert to fraction form
    1,091,664.80/1,638,080.40 = 492,718.40/x
  3. Step 3: Cross multiply
    1,091,664.80x = 1,638,080.40 × 492,718.40
  4. Step 4: Simplify right side
    1,091,664.80x = 807,112,353,759.36
  5. Step 5: Solve for x
    x = 807,112,353,759.36/1,091,664.80
  6. Step 6: Final answer
    x = 739,340.82

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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.