Home / 311,579.10-467,368.65-309,610.80

Finding the Fourth Proportional to 311,579.10, 467,368.65 and 309,610.80

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Solution

The fourth proportional to 311,579.10, 467,368.65 and 309,610.80 is: 464,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,579.10 : 467,368.65 = 309,610.80 : x
  2. Step 2: Convert to fraction form
    311,579.10/467,368.65 = 309,610.80/x
  3. Step 3: Cross multiply
    311,579.10x = 467,368.65 × 309,610.80
  4. Step 4: Simplify right side
    311,579.10x = 144,702,381,621.42
  5. Step 5: Solve for x
    x = 144,702,381,621.42/311,579.10
  6. Step 6: Final answer
    x = 464,416.20

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1.5x scale

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.