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Finding the Fourth Proportional to 606,581.60, 909,289.20 and 471,570.80

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Solution

The fourth proportional to 606,581.60, 909,289.20 and 471,570.80 is: 706,902.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,581.60 : 909,289.20 = 471,570.80 : x
  2. Step 2: Convert to fraction form
    606,581.60/909,289.20 = 471,570.80/x
  3. Step 3: Cross multiply
    606,581.60x = 909,289.20 × 471,570.80
  4. Step 4: Simplify right side
    606,581.60x = 428,794,235,475.36
  5. Step 5: Solve for x
    x = 428,794,235,475.36/606,581.60
  6. Step 6: Final answer
    x = 706,902.81

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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.