Home / 823,513.60-1,234,687.20-317,879.20

Finding the Fourth Proportional to 823,513.60, 1,234,687.20 and 317,879.20

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Solution

The fourth proportional to 823,513.60, 1,234,687.20 and 317,879.20 is: 476,593.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,513.60 : 1,234,687.20 = 317,879.20 : x
  2. Step 2: Convert to fraction form
    823,513.60/1,234,687.20 = 317,879.20/x
  3. Step 3: Cross multiply
    823,513.60x = 1,234,687.20 × 317,879.20
  4. Step 4: Simplify right side
    823,513.60x = 392,481,379,386.24
  5. Step 5: Solve for x
    x = 392,481,379,386.24/823,513.60
  6. Step 6: Final answer
    x = 476,593.68

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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.