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Finding the Fourth Proportional to 454,601.21, 627,119.21 and 346,984.40

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Solution

The fourth proportional to 454,601.21, 627,119.21 and 346,984.40 is: 478,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,601.21 : 627,119.21 = 346,984.40 : x
  2. Step 2: Convert to fraction form
    454,601.21/627,119.21 = 346,984.40/x
  3. Step 3: Cross multiply
    454,601.21x = 627,119.21 × 346,984.40
  4. Step 4: Simplify right side
    454,601.21x = 217,600,585,245.58
  5. Step 5: Solve for x
    x = 217,600,585,245.58/454,601.21
  6. Step 6: Final answer
    x = 478,662.58

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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.