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Finding the Fourth Proportional to 570,941.64, 856,943.82 and 290,668.68

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Solution

The fourth proportional to 570,941.64, 856,943.82 and 290,668.68 is: 436,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,941.64 : 856,943.82 = 290,668.68 : x
  2. Step 2: Convert to fraction form
    570,941.64/856,943.82 = 290,668.68/x
  3. Step 3: Cross multiply
    570,941.64x = 856,943.82 × 290,668.68
  4. Step 4: Simplify right side
    570,941.64x = 249,086,728,993.56
  5. Step 5: Solve for x
    x = 249,086,728,993.56/570,941.64
  6. Step 6: Final answer
    x = 436,273.54

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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.