Home / 1,232,419.60-1,848,629.40-345,840.40

Finding the Fourth Proportional to 1,232,419.60, 1,848,629.40 and 345,840.40

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Solution

The fourth proportional to 1,232,419.60, 1,848,629.40 and 345,840.40 is: 518,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232,419.60 : 1,848,629.40 = 345,840.40 : x
  2. Step 2: Convert to fraction form
    1,232,419.60/1,848,629.40 = 345,840.40/x
  3. Step 3: Cross multiply
    1,232,419.60x = 1,848,629.40 × 345,840.40
  4. Step 4: Simplify right side
    1,232,419.60x = 639,330,731,147.76
  5. Step 5: Solve for x
    x = 639,330,731,147.76/1,232,419.60
  6. Step 6: Final answer
    x = 518,760.60

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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.