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Finding the Fourth Proportional to 701,668.64, 968,280.72 and 395,838.56

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Solution

The fourth proportional to 701,668.64, 968,280.72 and 395,838.56 is: 546,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,668.64 : 968,280.72 = 395,838.56 : x
  2. Step 2: Convert to fraction form
    701,668.64/968,280.72 = 395,838.56/x
  3. Step 3: Cross multiply
    701,668.64x = 968,280.72 × 395,838.56
  4. Step 4: Simplify right side
    701,668.64x = 383,282,845,880.56
  5. Step 5: Solve for x
    x = 383,282,845,880.56/701,668.64
  6. Step 6: Final answer
    x = 546,244.80

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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.