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Finding the Fourth Proportional to 471,421.20, 650,548.75 and 256,556.65

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Solution

The fourth proportional to 471,421.20, 650,548.75 and 256,556.65 is: 354,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,421.20 : 650,548.75 = 256,556.65 : x
  2. Step 2: Convert to fraction form
    471,421.20/650,548.75 = 256,556.65/x
  3. Step 3: Cross multiply
    471,421.20x = 650,548.75 × 256,556.65
  4. Step 4: Simplify right side
    471,421.20x = 166,902,607,961.69
  5. Step 5: Solve for x
    x = 166,902,607,961.69/471,421.20
  6. Step 6: Final answer
    x = 354,041.37

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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.