Home / 1,279,126.24-1,918,355.10-380,325.94

Finding the Fourth Proportional to 1,279,126.24, 1,918,355.10 and 380,325.94

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Solution

The fourth proportional to 1,279,126.24, 1,918,355.10 and 380,325.94 is: 570,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,126.24 : 1,918,355.10 = 380,325.94 : x
  2. Step 2: Convert to fraction form
    1,279,126.24/1,918,355.10 = 380,325.94/x
  3. Step 3: Cross multiply
    1,279,126.24x = 1,918,355.10 × 380,325.94
  4. Step 4: Simplify right side
    1,279,126.24x = 729,600,206,661.29
  5. Step 5: Solve for x
    x = 729,600,206,661.29/1,279,126.24
  6. Step 6: Final answer
    x = 570,389.52

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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.