Home / 455,842.20-684,929.70-404,520.60

Finding the Fourth Proportional to 455,842.20, 684,929.70 and 404,520.60

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Solution

The fourth proportional to 455,842.20, 684,929.70 and 404,520.60 is: 607,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,842.20 : 684,929.70 = 404,520.60 : x
  2. Step 2: Convert to fraction form
    455,842.20/684,929.70 = 404,520.60/x
  3. Step 3: Cross multiply
    455,842.20x = 684,929.70 × 404,520.60
  4. Step 4: Simplify right side
    455,842.20x = 277,068,173,201.82
  5. Step 5: Solve for x
    x = 277,068,173,201.82/455,842.20
  6. Step 6: Final answer
    x = 607,815.98

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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.