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Finding the Fourth Proportional to 454,108.40, 679,850.40 and 440,986.40

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Solution

The fourth proportional to 454,108.40, 679,850.40 and 440,986.40 is: 660,205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,108.40 : 679,850.40 = 440,986.40 : x
  2. Step 2: Convert to fraction form
    454,108.40/679,850.40 = 440,986.40/x
  3. Step 3: Cross multiply
    454,108.40x = 679,850.40 × 440,986.40
  4. Step 4: Simplify right side
    454,108.40x = 299,804,780,434.56
  5. Step 5: Solve for x
    x = 299,804,780,434.56/454,108.40
  6. Step 6: Final answer
    x = 660,205.32

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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.