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Finding the Fourth Proportional to 501,771.44, 693,019.28 and 330,455.22

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Solution

The fourth proportional to 501,771.44, 693,019.28 and 330,455.22 is: 456,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,771.44 : 693,019.28 = 330,455.22 : x
  2. Step 2: Convert to fraction form
    501,771.44/693,019.28 = 330,455.22/x
  3. Step 3: Cross multiply
    501,771.44x = 693,019.28 × 330,455.22
  4. Step 4: Simplify right side
    501,771.44x = 229,011,836,984.37
  5. Step 5: Solve for x
    x = 229,011,836,984.37/501,771.44
  6. Step 6: Final answer
    x = 456,406.68

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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.