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Finding the Fourth Proportional to 449,962.32, 670,974.72 and 445,911.84

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Solution

The fourth proportional to 449,962.32, 670,974.72 and 445,911.84 is: 664,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,962.32 : 670,974.72 = 445,911.84 : x
  2. Step 2: Convert to fraction form
    449,962.32/670,974.72 = 445,911.84/x
  3. Step 3: Cross multiply
    449,962.32x = 670,974.72 × 445,911.84
  4. Step 4: Simplify right side
    449,962.32x = 299,195,571,988.69
  5. Step 5: Solve for x
    x = 299,195,571,988.69/449,962.32
  6. Step 6: Final answer
    x = 664,934.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.