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Finding the Fourth Proportional to 478,851.60, 717,240.60 and 395,907.60

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Solution

The fourth proportional to 478,851.60, 717,240.60 and 395,907.60 is: 593,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,851.60 : 717,240.60 = 395,907.60 : x
  2. Step 2: Convert to fraction form
    478,851.60/717,240.60 = 395,907.60/x
  3. Step 3: Cross multiply
    478,851.60x = 717,240.60 × 395,907.60
  4. Step 4: Simplify right side
    478,851.60x = 283,961,004,568.56
  5. Step 5: Solve for x
    x = 283,961,004,568.56/478,851.60
  6. Step 6: Final answer
    x = 593,004.19

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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.