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Finding the Fourth Proportional to 627,812.40, 940,489.80 and 377,751.60

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Solution

The fourth proportional to 627,812.40, 940,489.80 and 377,751.60 is: 565,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,812.40 : 940,489.80 = 377,751.60 : x
  2. Step 2: Convert to fraction form
    627,812.40/940,489.80 = 377,751.60/x
  3. Step 3: Cross multiply
    627,812.40x = 940,489.80 × 377,751.60
  4. Step 4: Simplify right side
    627,812.40x = 355,271,526,733.68
  5. Step 5: Solve for x
    x = 355,271,526,733.68/627,812.40
  6. Step 6: Final answer
    x = 565,888.04

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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.