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Finding the Fourth Proportional to 486,850.90, 730,276.35 and 403,906.90

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Solution

The fourth proportional to 486,850.90, 730,276.35 and 403,906.90 is: 605,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,850.90 : 730,276.35 = 403,906.90 : x
  2. Step 2: Convert to fraction form
    486,850.90/730,276.35 = 403,906.90/x
  3. Step 3: Cross multiply
    486,850.90x = 730,276.35 × 403,906.90
  4. Step 4: Simplify right side
    486,850.90x = 294,963,656,671.82
  5. Step 5: Solve for x
    x = 294,963,656,671.82/486,850.90
  6. Step 6: Final answer
    x = 605,860.35

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Similar ratio
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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.