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Finding the Fourth Proportional to 774,185.60, 1,160,978.88 and 300,808.64

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Solution

The fourth proportional to 774,185.60, 1,160,978.88 and 300,808.64 is: 451,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,185.60 : 1,160,978.88 = 300,808.64 : x
  2. Step 2: Convert to fraction form
    774,185.60/1,160,978.88 = 300,808.64/x
  3. Step 3: Cross multiply
    774,185.60x = 1,160,978.88 × 300,808.64
  4. Step 4: Simplify right side
    774,185.60x = 349,232,477,961.52
  5. Step 5: Solve for x
    x = 349,232,477,961.52/774,185.60
  6. Step 6: Final answer
    x = 451,096.58

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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.