Home / 816,416.70-1,224,819.45-342,858.30

Finding the Fourth Proportional to 816,416.70, 1,224,819.45 and 342,858.30

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Solution

The fourth proportional to 816,416.70, 1,224,819.45 and 342,858.30 is: 514,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,416.70 : 1,224,819.45 = 342,858.30 : x
  2. Step 2: Convert to fraction form
    816,416.70/1,224,819.45 = 342,858.30/x
  3. Step 3: Cross multiply
    816,416.70x = 1,224,819.45 × 342,858.30
  4. Step 4: Simplify right side
    816,416.70x = 419,939,514,433.94
  5. Step 5: Solve for x
    x = 419,939,514,433.94/816,416.70
  6. Step 6: Final answer
    x = 514,369.09

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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.