Home / 481,298.85-664,505.76-309,283.10

Finding the Fourth Proportional to 481,298.85, 664,505.76 and 309,283.10

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Solution

The fourth proportional to 481,298.85, 664,505.76 and 309,283.10 is: 427,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,298.85 : 664,505.76 = 309,283.10 : x
  2. Step 2: Convert to fraction form
    481,298.85/664,505.76 = 309,283.10/x
  3. Step 3: Cross multiply
    481,298.85x = 664,505.76 × 309,283.10
  4. Step 4: Simplify right side
    481,298.85x = 205,520,401,420.66
  5. Step 5: Solve for x
    x = 205,520,401,420.66/481,298.85
  6. Step 6: Final answer
    x = 427,012.04

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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.