Home / 1,992,885.67-2,989,803.16-645,048.50

Finding the Fourth Proportional to 1,992,885.67, 2,989,803.16 and 645,048.50

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Solution

The fourth proportional to 1,992,885.67, 2,989,803.16 and 645,048.50 is: 967,726.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,885.67 : 2,989,803.16 = 645,048.50 : x
  2. Step 2: Convert to fraction form
    1,992,885.67/2,989,803.16 = 645,048.50/x
  3. Step 3: Cross multiply
    1,992,885.67x = 2,989,803.16 × 645,048.50
  4. Step 4: Simplify right side
    1,992,885.67x = 1,928,568,043,653.26
  5. Step 5: Solve for x
    x = 1,928,568,043,653.26/1,992,885.67
  6. Step 6: Final answer
    x = 967,726.39

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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.