Home / 790,816.66-1,185,979.65-285,311.92

Finding the Fourth Proportional to 790,816.66, 1,185,979.65 and 285,311.92

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Solution

The fourth proportional to 790,816.66, 1,185,979.65 and 285,311.92 is: 427,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,816.66 : 1,185,979.65 = 285,311.92 : x
  2. Step 2: Convert to fraction form
    790,816.66/1,185,979.65 = 285,311.92/x
  3. Step 3: Cross multiply
    790,816.66x = 1,185,979.65 × 285,311.92
  4. Step 4: Simplify right side
    790,816.66x = 338,374,129,595.87
  5. Step 5: Solve for x
    x = 338,374,129,595.87/790,816.66
  6. Step 6: Final answer
    x = 427,879.37

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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.