Home / 385,622.10-578,433.15-227,769.30

Finding the Fourth Proportional to 385,622.10, 578,433.15 and 227,769.30

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Solution

The fourth proportional to 385,622.10, 578,433.15 and 227,769.30 is: 341,653.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,622.10 : 578,433.15 = 227,769.30 : x
  2. Step 2: Convert to fraction form
    385,622.10/578,433.15 = 227,769.30/x
  3. Step 3: Cross multiply
    385,622.10x = 578,433.15 × 227,769.30
  4. Step 4: Simplify right side
    385,622.10x = 131,749,313,672.30
  5. Step 5: Solve for x
    x = 131,749,313,672.30/385,622.10
  6. Step 6: Final answer
    x = 341,653.95

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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.