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Finding the Fourth Proportional to 647,274.40, 970,911.60 and 578,845.60

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Solution

The fourth proportional to 647,274.40, 970,911.60 and 578,845.60 is: 868,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,274.40 : 970,911.60 = 578,845.60 : x
  2. Step 2: Convert to fraction form
    647,274.40/970,911.60 = 578,845.60/x
  3. Step 3: Cross multiply
    647,274.40x = 970,911.60 × 578,845.60
  4. Step 4: Simplify right side
    647,274.40x = 562,007,907,648.96
  5. Step 5: Solve for x
    x = 562,007,907,648.96/647,274.40
  6. Step 6: Final answer
    x = 868,268.40

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Similar ratio
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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.