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Finding the Fourth Proportional to 454,653, 682,006.84 and 139,112.64

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Solution

The fourth proportional to 454,653, 682,006.84 and 139,112.64 is: 208,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,653 : 682,006.84 = 139,112.64 : x
  2. Step 2: Convert to fraction form
    454,653/682,006.84 = 139,112.64/x
  3. Step 3: Cross multiply
    454,653x = 682,006.84 × 139,112.64
  4. Step 4: Simplify right side
    454,653x = 94,875,771,662.68
  5. Step 5: Solve for x
    x = 94,875,771,662.68/454,653
  6. Step 6: Final answer
    x = 208,677.32

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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.