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Finding the Fourth Proportional to 446,143.32, 668,403.04 and 398,313.63

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Solution

The fourth proportional to 446,143.32, 668,403.04 and 398,313.63 is: 596,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,143.32 : 668,403.04 = 398,313.63 : x
  2. Step 2: Convert to fraction form
    446,143.32/668,403.04 = 398,313.63/x
  3. Step 3: Cross multiply
    446,143.32x = 668,403.04 × 398,313.63
  4. Step 4: Simplify right side
    446,143.32x = 266,234,040,169.65
  5. Step 5: Solve for x
    x = 266,234,040,169.65/446,143.32
  6. Step 6: Final answer
    x = 596,745.55

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1.5x scale

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.