Home / 386,181.60-579,272.40-351,189.60

Finding the Fourth Proportional to 386,181.60, 579,272.40 and 351,189.60

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Solution

The fourth proportional to 386,181.60, 579,272.40 and 351,189.60 is: 526,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,181.60 : 579,272.40 = 351,189.60 : x
  2. Step 2: Convert to fraction form
    386,181.60/579,272.40 = 351,189.60/x
  3. Step 3: Cross multiply
    386,181.60x = 579,272.40 × 351,189.60
  4. Step 4: Simplify right side
    386,181.60x = 203,434,442,447.04
  5. Step 5: Solve for x
    x = 203,434,442,447.04/386,181.60
  6. Step 6: Final answer
    x = 526,784.40

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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.