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Finding the Fourth Proportional to 418,323.60, 627,485.40 and 301,100.40

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Solution

The fourth proportional to 418,323.60, 627,485.40 and 301,100.40 is: 451,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,323.60 : 627,485.40 = 301,100.40 : x
  2. Step 2: Convert to fraction form
    418,323.60/627,485.40 = 301,100.40/x
  3. Step 3: Cross multiply
    418,323.60x = 627,485.40 × 301,100.40
  4. Step 4: Simplify right side
    418,323.60x = 188,936,104,934.16
  5. Step 5: Solve for x
    x = 188,936,104,934.16/418,323.60
  6. Step 6: Final answer
    x = 451,650.60

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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.