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Finding the Fourth Proportional to 454,739.64, 627,513.60 and 261,178.87

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Solution

The fourth proportional to 454,739.64, 627,513.60 and 261,178.87 is: 360,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,739.64 : 627,513.60 = 261,178.87 : x
  2. Step 2: Convert to fraction form
    454,739.64/627,513.60 = 261,178.87/x
  3. Step 3: Cross multiply
    454,739.64x = 627,513.60 × 261,178.87
  4. Step 4: Simplify right side
    454,739.64x = 163,893,292,368.27
  5. Step 5: Solve for x
    x = 163,893,292,368.27/454,739.64
  6. Step 6: Final answer
    x = 360,411.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.