Home / 1,988,318.39-2,979,697.46-1,075,530.20

Finding the Fourth Proportional to 1,988,318.39, 2,979,697.46 and 1,075,530.20

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Solution

The fourth proportional to 1,988,318.39, 2,979,697.46 and 1,075,530.20 is: 1,611,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,318.39 : 2,979,697.46 = 1,075,530.20 : x
  2. Step 2: Convert to fraction form
    1,988,318.39/2,979,697.46 = 1,075,530.20/x
  3. Step 3: Cross multiply
    1,988,318.39x = 2,979,697.46 × 1,075,530.20
  4. Step 4: Simplify right side
    1,988,318.39x = 3,204,754,584,817.15
  5. Step 5: Solve for x
    x = 3,204,754,584,817.15/1,988,318.39
  6. Step 6: Final answer
    x = 1,611,791.46

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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.