Home / 684,752.89-1,027,487.51-280,245.37

Finding the Fourth Proportional to 684,752.89, 1,027,487.51 and 280,245.37

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Solution

The fourth proportional to 684,752.89, 1,027,487.51 and 280,245.37 is: 420,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,752.89 : 1,027,487.51 = 280,245.37 : x
  2. Step 2: Convert to fraction form
    684,752.89/1,027,487.51 = 280,245.37/x
  3. Step 3: Cross multiply
    684,752.89x = 1,027,487.51 × 280,245.37
  4. Step 4: Simplify right side
    684,752.89x = 287,948,617,410.33
  5. Step 5: Solve for x
    x = 287,948,617,410.33/684,752.89
  6. Step 6: Final answer
    x = 420,514.64

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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.