Home / 454,913.20-682,369.80-384,929.20

Finding the Fourth Proportional to 454,913.20, 682,369.80 and 384,929.20

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Solution

The fourth proportional to 454,913.20, 682,369.80 and 384,929.20 is: 577,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,913.20 : 682,369.80 = 384,929.20 : x
  2. Step 2: Convert to fraction form
    454,913.20/682,369.80 = 384,929.20/x
  3. Step 3: Cross multiply
    454,913.20x = 682,369.80 × 384,929.20
  4. Step 4: Simplify right side
    454,913.20x = 262,664,061,218.16
  5. Step 5: Solve for x
    x = 262,664,061,218.16/454,913.20
  6. Step 6: Final answer
    x = 577,393.80

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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.