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Finding the Fourth Proportional to 701,775.78, 968,459.13 and 395,824.20

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Solution

The fourth proportional to 701,775.78, 968,459.13 and 395,824.20 is: 546,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,775.78 : 968,459.13 = 395,824.20 : x
  2. Step 2: Convert to fraction form
    701,775.78/968,459.13 = 395,824.20/x
  3. Step 3: Cross multiply
    701,775.78x = 968,459.13 × 395,824.20
  4. Step 4: Simplify right side
    701,775.78x = 383,339,560,364.95
  5. Step 5: Solve for x
    x = 383,339,560,364.95/701,775.78
  6. Step 6: Final answer
    x = 546,242.22

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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.