Home / 387,675.42-580,919.60-260,845.90

Finding the Fourth Proportional to 387,675.42, 580,919.60 and 260,845.90

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Solution

The fourth proportional to 387,675.42, 580,919.60 and 260,845.90 is: 390,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,675.42 : 580,919.60 = 260,845.90 : x
  2. Step 2: Convert to fraction form
    387,675.42/580,919.60 = 260,845.90/x
  3. Step 3: Cross multiply
    387,675.42x = 580,919.60 × 260,845.90
  4. Step 4: Simplify right side
    387,675.42x = 151,530,495,889.64
  5. Step 5: Solve for x
    x = 151,530,495,889.64/387,675.42
  6. Step 6: Final answer
    x = 390,869.50

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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.