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Finding the Fourth Proportional to 570,610.60, 787,442.58 and 315,961.79

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Solution

The fourth proportional to 570,610.60, 787,442.58 and 315,961.79 is: 436,027.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,610.60 : 787,442.58 = 315,961.79 : x
  2. Step 2: Convert to fraction form
    570,610.60/787,442.58 = 315,961.79/x
  3. Step 3: Cross multiply
    570,610.60x = 787,442.58 × 315,961.79
  4. Step 4: Simplify right side
    570,610.60x = 248,801,763,161.81
  5. Step 5: Solve for x
    x = 248,801,763,161.81/570,610.60
  6. Step 6: Final answer
    x = 436,027.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.