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Finding the Fourth Proportional to 471,289.59, 650,522.48 and 320,474.07

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Solution

The fourth proportional to 471,289.59, 650,522.48 and 320,474.07 is: 442,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,289.59 : 650,522.48 = 320,474.07 : x
  2. Step 2: Convert to fraction form
    471,289.59/650,522.48 = 320,474.07/x
  3. Step 3: Cross multiply
    471,289.59x = 650,522.48 × 320,474.07
  4. Step 4: Simplify right side
    471,289.59x = 208,475,585,189.72
  5. Step 5: Solve for x
    x = 208,475,585,189.72/471,289.59
  6. Step 6: Final answer
    x = 442,351.35

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1.5x scale

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.