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Finding the Fourth Proportional to 652,504.32, 978,440.04 and 382,720.62

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Solution

The fourth proportional to 652,504.32, 978,440.04 and 382,720.62 is: 573,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,504.32 : 978,440.04 = 382,720.62 : x
  2. Step 2: Convert to fraction form
    652,504.32/978,440.04 = 382,720.62/x
  3. Step 3: Cross multiply
    652,504.32x = 978,440.04 × 382,720.62
  4. Step 4: Simplify right side
    652,504.32x = 374,469,178,741.63
  5. Step 5: Solve for x
    x = 374,469,178,741.63/652,504.32
  6. Step 6: Final answer
    x = 573,895.32

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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.