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Finding the Fourth Proportional to 445,491.90, 668,808.09 and 382,713.66

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Solution

The fourth proportional to 445,491.90, 668,808.09 and 382,713.66 is: 574,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,491.90 : 668,808.09 = 382,713.66 : x
  2. Step 2: Convert to fraction form
    445,491.90/668,808.09 = 382,713.66/x
  3. Step 3: Cross multiply
    445,491.90x = 668,808.09 × 382,713.66
  4. Step 4: Simplify right side
    445,491.90x = 255,961,991,961.51
  5. Step 5: Solve for x
    x = 255,961,991,961.51/445,491.90
  6. Step 6: Final answer
    x = 574,560.37

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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.