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Finding the Fourth Proportional to 521,526.42, 782,556.60 and 248,281.86

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Solution

The fourth proportional to 521,526.42, 782,556.60 and 248,281.86 is: 372,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,526.42 : 782,556.60 = 248,281.86 : x
  2. Step 2: Convert to fraction form
    521,526.42/782,556.60 = 248,281.86/x
  3. Step 3: Cross multiply
    521,526.42x = 782,556.60 × 248,281.86
  4. Step 4: Simplify right side
    521,526.42x = 194,294,609,134.33
  5. Step 5: Solve for x
    x = 194,294,609,134.33/521,526.42
  6. Step 6: Final answer
    x = 372,549.89

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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.