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Finding the Fourth Proportional to 446,144.32, 668,404.54 and 398,314.63

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Solution

The fourth proportional to 446,144.32, 668,404.54 and 398,314.63 is: 596,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,144.32 : 668,404.54 = 398,314.63 : x
  2. Step 2: Convert to fraction form
    446,144.32/668,404.54 = 398,314.63/x
  3. Step 3: Cross multiply
    446,144.32x = 668,404.54 × 398,314.63
  4. Step 4: Simplify right side
    446,144.32x = 266,235,307,040.42
  5. Step 5: Solve for x
    x = 266,235,307,040.42/446,144.32
  6. Step 6: Final answer
    x = 596,747.05

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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.