Home / 1,391,416.43-2,087,094.92-380,538.38

Finding the Fourth Proportional to 1,391,416.43, 2,087,094.92 and 380,538.38

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Solution

The fourth proportional to 1,391,416.43, 2,087,094.92 and 380,538.38 is: 570,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,416.43 : 2,087,094.92 = 380,538.38 : x
  2. Step 2: Convert to fraction form
    1,391,416.43/2,087,094.92 = 380,538.38/x
  3. Step 3: Cross multiply
    1,391,416.43x = 2,087,094.92 × 380,538.38
  4. Step 4: Simplify right side
    1,391,416.43x = 794,219,723,078.08
  5. Step 5: Solve for x
    x = 794,219,723,078.08/1,391,416.43
  6. Step 6: Final answer
    x = 570,799.44

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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.