Home / 3,121,436.42-4,678,962.06-1,581,579.28

Finding the Fourth Proportional to 3,121,436.42, 4,678,962.06 and 1,581,579.28

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Solution

The fourth proportional to 3,121,436.42, 4,678,962.06 and 1,581,579.28 is: 2,370,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,436.42 : 4,678,962.06 = 1,581,579.28 : x
  2. Step 2: Convert to fraction form
    3,121,436.42/4,678,962.06 = 1,581,579.28/x
  3. Step 3: Cross multiply
    3,121,436.42x = 4,678,962.06 × 1,581,579.28
  4. Step 4: Simplify right side
    3,121,436.42x = 7,400,149,446,002.12
  5. Step 5: Solve for x
    x = 7,400,149,446,002.12/3,121,436.42
  6. Step 6: Final answer
    x = 2,370,751.30

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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.