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Finding the Fourth Proportional to 450,990.16, 622,130.46 and 278,853.10

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Solution

The fourth proportional to 450,990.16, 622,130.46 and 278,853.10 is: 384,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,990.16 : 622,130.46 = 278,853.10 : x
  2. Step 2: Convert to fraction form
    450,990.16/622,130.46 = 278,853.10/x
  3. Step 3: Cross multiply
    450,990.16x = 622,130.46 × 278,853.10
  4. Step 4: Simplify right side
    450,990.16x = 173,483,007,375.43
  5. Step 5: Solve for x
    x = 173,483,007,375.43/450,990.16
  6. Step 6: Final answer
    x = 384,671.38

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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.