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Finding the Fourth Proportional to 529,825.20, 794,123.40 and 214,074.80

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Solution

The fourth proportional to 529,825.20, 794,123.40 and 214,074.80 is: 320,863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,825.20 : 794,123.40 = 214,074.80 : x
  2. Step 2: Convert to fraction form
    529,825.20/794,123.40 = 214,074.80/x
  3. Step 3: Cross multiply
    529,825.20x = 794,123.40 × 214,074.80
  4. Step 4: Simplify right side
    529,825.20x = 170,001,808,030.32
  5. Step 5: Solve for x
    x = 170,001,808,030.32/529,825.20
  6. Step 6: Final answer
    x = 320,863.95

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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.