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Finding the Fourth Proportional to 445,190.84, 668,664.32 and 382,522.76

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Solution

The fourth proportional to 445,190.84, 668,664.32 and 382,522.76 is: 574,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,190.84 : 668,664.32 = 382,522.76 : x
  2. Step 2: Convert to fraction form
    445,190.84/668,664.32 = 382,522.76/x
  3. Step 3: Cross multiply
    445,190.84x = 668,664.32 × 382,522.76
  4. Step 4: Simplify right side
    445,190.84x = 255,779,321,199.92
  5. Step 5: Solve for x
    x = 255,779,321,199.92/445,190.84
  6. Step 6: Final answer
    x = 574,538.60

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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.