Home / 3,240,147.21-4,468,054.01-2,782,776.21

Finding the Fourth Proportional to 3,240,147.21, 4,468,054.01 and 2,782,776.21

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Solution

The fourth proportional to 3,240,147.21, 4,468,054.01 and 2,782,776.21 is: 3,837,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240,147.21 : 4,468,054.01 = 2,782,776.21 : x
  2. Step 2: Convert to fraction form
    3,240,147.21/4,468,054.01 = 2,782,776.21/x
  3. Step 3: Cross multiply
    3,240,147.21x = 4,468,054.01 × 2,782,776.21
  4. Step 4: Simplify right side
    3,240,147.21x = 12,433,594,390,109.22
  5. Step 5: Solve for x
    x = 12,433,594,390,109.22/3,240,147.21
  6. Step 6: Final answer
    x = 3,837,354.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.