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Finding the Fourth Proportional to 559,642.80, 839,464.20 and 322,863.60

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Solution

The fourth proportional to 559,642.80, 839,464.20 and 322,863.60 is: 484,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,642.80 : 839,464.20 = 322,863.60 : x
  2. Step 2: Convert to fraction form
    559,642.80/839,464.20 = 322,863.60/x
  3. Step 3: Cross multiply
    559,642.80x = 839,464.20 × 322,863.60
  4. Step 4: Simplify right side
    559,642.80x = 271,032,433,683.12
  5. Step 5: Solve for x
    x = 271,032,433,683.12/559,642.80
  6. Step 6: Final answer
    x = 484,295.40

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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.