Home / 825,076.77-1,237,968.05-345,416.64

Finding the Fourth Proportional to 825,076.77, 1,237,968.05 and 345,416.64

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Solution

The fourth proportional to 825,076.77, 1,237,968.05 and 345,416.64 is: 518,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,076.77 : 1,237,968.05 = 345,416.64 : x
  2. Step 2: Convert to fraction form
    825,076.77/1,237,968.05 = 345,416.64/x
  3. Step 3: Cross multiply
    825,076.77x = 1,237,968.05 × 345,416.64
  4. Step 4: Simplify right side
    825,076.77x = 427,614,762,531.27
  5. Step 5: Solve for x
    x = 427,614,762,531.27/825,076.77
  6. Step 6: Final answer
    x = 518,272.70

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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.