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Finding the Fourth Proportional to 450,378, 621,529.54 and 246,446.79

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Solution

The fourth proportional to 450,378, 621,529.54 and 246,446.79 is: 340,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,378 : 621,529.54 = 246,446.79 : x
  2. Step 2: Convert to fraction form
    450,378/621,529.54 = 246,446.79/x
  3. Step 3: Cross multiply
    450,378x = 621,529.54 × 246,446.79
  4. Step 4: Simplify right side
    450,378x = 153,173,957,076.32
  5. Step 5: Solve for x
    x = 153,173,957,076.32/450,378
  6. Step 6: Final answer
    x = 340,100.89

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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.