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Finding the Fourth Proportional to 627,743.40, 940,386.30 and 377,682.60

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Solution

The fourth proportional to 627,743.40, 940,386.30 and 377,682.60 is: 565,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,743.40 : 940,386.30 = 377,682.60 : x
  2. Step 2: Convert to fraction form
    627,743.40/940,386.30 = 377,682.60/x
  3. Step 3: Cross multiply
    627,743.40x = 940,386.30 × 377,682.60
  4. Step 4: Simplify right side
    627,743.40x = 355,167,542,788.38
  5. Step 5: Solve for x
    x = 355,167,542,788.38/627,743.40
  6. Step 6: Final answer
    x = 565,784.59

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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.