Home / 1,123,514.80-1,685,272.20-449,700.10

Finding the Fourth Proportional to 1,123,514.80, 1,685,272.20 and 449,700.10

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Solution

The fourth proportional to 1,123,514.80, 1,685,272.20 and 449,700.10 is: 674,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,514.80 : 1,685,272.20 = 449,700.10 : x
  2. Step 2: Convert to fraction form
    1,123,514.80/1,685,272.20 = 449,700.10/x
  3. Step 3: Cross multiply
    1,123,514.80x = 1,685,272.20 × 449,700.10
  4. Step 4: Simplify right side
    1,123,514.80x = 757,867,076,867.22
  5. Step 5: Solve for x
    x = 757,867,076,867.22/1,123,514.80
  6. Step 6: Final answer
    x = 674,550.15

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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.