Home / 1,269,879.21-1,905,353.19-790,508.25

Finding the Fourth Proportional to 1,269,879.21, 1,905,353.19 and 790,508.25

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Solution

The fourth proportional to 1,269,879.21, 1,905,353.19 and 790,508.25 is: 1,186,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,879.21 : 1,905,353.19 = 790,508.25 : x
  2. Step 2: Convert to fraction form
    1,269,879.21/1,905,353.19 = 790,508.25/x
  3. Step 3: Cross multiply
    1,269,879.21x = 1,905,353.19 × 790,508.25
  4. Step 4: Simplify right side
    1,269,879.21x = 1,506,197,415,858.82
  5. Step 5: Solve for x
    x = 1,506,197,415,858.82/1,269,879.21
  6. Step 6: Final answer
    x = 1,186,095.03

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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.