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Finding the Fourth Proportional to 488,651.34, 732,986.73 and 321,239.46

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Solution

The fourth proportional to 488,651.34, 732,986.73 and 321,239.46 is: 481,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,651.34 : 732,986.73 = 321,239.46 : x
  2. Step 2: Convert to fraction form
    488,651.34/732,986.73 = 321,239.46/x
  3. Step 3: Cross multiply
    488,651.34x = 732,986.73 × 321,239.46
  4. Step 4: Simplify right side
    488,651.34x = 235,464,261,332.37
  5. Step 5: Solve for x
    x = 235,464,261,332.37/488,651.34
  6. Step 6: Final answer
    x = 481,865.58

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1.5x scale

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.