Home / 856,451.50-1,284,256.88-423,668.94

Finding the Fourth Proportional to 856,451.50, 1,284,256.88 and 423,668.94

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Solution

The fourth proportional to 856,451.50, 1,284,256.88 and 423,668.94 is: 635,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,451.50 : 1,284,256.88 = 423,668.94 : x
  2. Step 2: Convert to fraction form
    856,451.50/1,284,256.88 = 423,668.94/x
  3. Step 3: Cross multiply
    856,451.50x = 1,284,256.88 × 423,668.94
  4. Step 4: Simplify right side
    856,451.50x = 544,099,751,037.31
  5. Step 5: Solve for x
    x = 544,099,751,037.31/856,451.50
  6. Step 6: Final answer
    x = 635,295.46

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Double scale
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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.