Home / 1,279,114.16-1,918,337.10-380,313.86

Finding the Fourth Proportional to 1,279,114.16, 1,918,337.10 and 380,313.86

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Solution

The fourth proportional to 1,279,114.16, 1,918,337.10 and 380,313.86 is: 570,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,114.16 : 1,918,337.10 = 380,313.86 : x
  2. Step 2: Convert to fraction form
    1,279,114.16/1,918,337.10 = 380,313.86/x
  3. Step 3: Cross multiply
    1,279,114.16x = 1,918,337.10 × 380,313.86
  4. Step 4: Simplify right side
    1,279,114.16x = 729,570,187,282.21
  5. Step 5: Solve for x
    x = 729,570,187,282.21/1,279,114.16
  6. Step 6: Final answer
    x = 570,371.44

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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.