Home / 1,409,467.70-2,109,881.55-776,443.70

Finding the Fourth Proportional to 1,409,467.70, 2,109,881.55 and 776,443.70

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Solution

The fourth proportional to 1,409,467.70, 2,109,881.55 and 776,443.70 is: 1,162,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,467.70 : 2,109,881.55 = 776,443.70 : x
  2. Step 2: Convert to fraction form
    1,409,467.70/2,109,881.55 = 776,443.70/x
  3. Step 3: Cross multiply
    1,409,467.70x = 2,109,881.55 × 776,443.70
  4. Step 4: Simplify right side
    1,409,467.70x = 1,638,204,237,243.74
  5. Step 5: Solve for x
    x = 1,638,204,237,243.74/1,409,467.70
  6. Step 6: Final answer
    x = 1,162,285.76

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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.