Home / 790,816.41-1,185,979.27-285,311.67

Finding the Fourth Proportional to 790,816.41, 1,185,979.27 and 285,311.67

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Solution

The fourth proportional to 790,816.41, 1,185,979.27 and 285,311.67 is: 427,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,816.41 : 1,185,979.27 = 285,311.67 : x
  2. Step 2: Convert to fraction form
    790,816.41/1,185,979.27 = 285,311.67/x
  3. Step 3: Cross multiply
    790,816.41x = 1,185,979.27 × 285,311.67
  4. Step 4: Simplify right side
    790,816.41x = 338,373,724,682.52
  5. Step 5: Solve for x
    x = 338,373,724,682.52/790,816.41
  6. Step 6: Final answer
    x = 427,878.99

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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.