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Finding the Fourth Proportional to 652,504.01, 978,439.58 and 382,720.31

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Solution

The fourth proportional to 652,504.01, 978,439.58 and 382,720.31 is: 573,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,504.01 : 978,439.58 = 382,720.31 : x
  2. Step 2: Convert to fraction form
    652,504.01/978,439.58 = 382,720.31/x
  3. Step 3: Cross multiply
    652,504.01x = 978,439.58 × 382,720.31
  4. Step 4: Simplify right side
    652,504.01x = 374,468,692,568.07
  5. Step 5: Solve for x
    x = 374,468,692,568.07/652,504.01
  6. Step 6: Final answer
    x = 573,894.86

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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.