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Finding the Fourth Proportional to 448,040.39, 617,880.42 and 326,989.94

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Solution

The fourth proportional to 448,040.39, 617,880.42 and 326,989.94 is: 450,943.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,040.39 : 617,880.42 = 326,989.94 : x
  2. Step 2: Convert to fraction form
    448,040.39/617,880.42 = 326,989.94/x
  3. Step 3: Cross multiply
    448,040.39x = 617,880.42 × 326,989.94
  4. Step 4: Simplify right side
    448,040.39x = 202,040,678,373.57
  5. Step 5: Solve for x
    x = 202,040,678,373.57/448,040.39
  6. Step 6: Final answer
    x = 450,943.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.