Home / 579,352.36-869,268.60-312,799.54

Finding the Fourth Proportional to 579,352.36, 869,268.60 and 312,799.54

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Solution

The fourth proportional to 579,352.36, 869,268.60 and 312,799.54 is: 469,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,352.36 : 869,268.60 = 312,799.54 : x
  2. Step 2: Convert to fraction form
    579,352.36/869,268.60 = 312,799.54/x
  3. Step 3: Cross multiply
    579,352.36x = 869,268.60 × 312,799.54
  4. Step 4: Simplify right side
    579,352.36x = 271,906,818,216.44
  5. Step 5: Solve for x
    x = 271,906,818,216.44/579,352.36
  6. Step 6: Final answer
    x = 469,328.92

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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.