Home / 1,988,330.21-2,979,715.29-1,075,542.46

Finding the Fourth Proportional to 1,988,330.21, 2,979,715.29 and 1,075,542.46

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Solution

The fourth proportional to 1,988,330.21, 2,979,715.29 and 1,075,542.46 is: 1,611,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,330.21 : 2,979,715.29 = 1,075,542.46 : x
  2. Step 2: Convert to fraction form
    1,988,330.21/2,979,715.29 = 1,075,542.46/x
  3. Step 3: Cross multiply
    1,988,330.21x = 2,979,715.29 × 1,075,542.46
  4. Step 4: Simplify right side
    1,988,330.21x = 3,204,810,313,106.21
  5. Step 5: Solve for x
    x = 3,204,810,313,106.21/1,988,330.21
  6. Step 6: Final answer
    x = 1,611,809.90

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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.