Home / 529,138.20-792,929.70-213,043.80

Finding the Fourth Proportional to 529,138.20, 792,929.70 and 213,043.80

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Solution

The fourth proportional to 529,138.20, 792,929.70 and 213,043.80 is: 319,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,138.20 : 792,929.70 = 213,043.80 : x
  2. Step 2: Convert to fraction form
    529,138.20/792,929.70 = 213,043.80/x
  3. Step 3: Cross multiply
    529,138.20x = 792,929.70 × 213,043.80
  4. Step 4: Simplify right side
    529,138.20x = 168,928,756,420.86
  5. Step 5: Solve for x
    x = 168,928,756,420.86/529,138.20
  6. Step 6: Final answer
    x = 319,252.62

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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.