Home / 1,983,109.31-2,974,928.80-784,751.39

Finding the Fourth Proportional to 1,983,109.31, 2,974,928.80 and 784,751.39

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Solution

The fourth proportional to 1,983,109.31, 2,974,928.80 and 784,751.39 is: 1,177,231.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983,109.31 : 2,974,928.80 = 784,751.39 : x
  2. Step 2: Convert to fraction form
    1,983,109.31/2,974,928.80 = 784,751.39/x
  3. Step 3: Cross multiply
    1,983,109.31x = 2,974,928.80 × 784,751.39
  4. Step 4: Simplify right side
    1,983,109.31x = 2,334,579,506,741.90
  5. Step 5: Solve for x
    x = 2,334,579,506,741.90/1,983,109.31
  6. Step 6: Final answer
    x = 1,177,231.88

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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.