Home / 683,816.20-1,025,714.70-309,838.60

Finding the Fourth Proportional to 683,816.20, 1,025,714.70 and 309,838.60

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Solution

The fourth proportional to 683,816.20, 1,025,714.70 and 309,838.60 is: 464,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,816.20 : 1,025,714.70 = 309,838.60 : x
  2. Step 2: Convert to fraction form
    683,816.20/1,025,714.70 = 309,838.60/x
  3. Step 3: Cross multiply
    683,816.20x = 1,025,714.70 × 309,838.60
  4. Step 4: Simplify right side
    683,816.20x = 317,806,006,647.42
  5. Step 5: Solve for x
    x = 317,806,006,647.42/683,816.20
  6. Step 6: Final answer
    x = 464,753.55

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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.