Home / 1,409,467.20-2,109,880.80-776,443.20

Finding the Fourth Proportional to 1,409,467.20, 2,109,880.80 and 776,443.20

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Solution

The fourth proportional to 1,409,467.20, 2,109,880.80 and 776,443.20 is: 1,162,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,467.20 : 2,109,880.80 = 776,443.20 : x
  2. Step 2: Convert to fraction form
    1,409,467.20/2,109,880.80 = 776,443.20/x
  3. Step 3: Cross multiply
    1,409,467.20x = 2,109,880.80 × 776,443.20
  4. Step 4: Simplify right side
    1,409,467.20x = 1,638,202,599,970.56
  5. Step 5: Solve for x
    x = 1,638,202,599,970.56/1,409,467.20
  6. Step 6: Final answer
    x = 1,162,285.01

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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.