Home / 455,835.20-684,919.20-404,513.60

Finding the Fourth Proportional to 455,835.20, 684,919.20 and 404,513.60

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Solution

The fourth proportional to 455,835.20, 684,919.20 and 404,513.60 is: 607,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,835.20 : 684,919.20 = 404,513.60 : x
  2. Step 2: Convert to fraction form
    455,835.20/684,919.20 = 404,513.60/x
  3. Step 3: Cross multiply
    455,835.20x = 684,919.20 × 404,513.60
  4. Step 4: Simplify right side
    455,835.20x = 277,059,131,301.12
  5. Step 5: Solve for x
    x = 277,059,131,301.12/455,835.20
  6. Step 6: Final answer
    x = 607,805.48

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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.