Home / 818,947.22-1,228,127.06-313,650.26

Finding the Fourth Proportional to 818,947.22, 1,228,127.06 and 313,650.26

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Solution

The fourth proportional to 818,947.22, 1,228,127.06 and 313,650.26 is: 470,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,947.22 : 1,228,127.06 = 313,650.26 : x
  2. Step 2: Convert to fraction form
    818,947.22/1,228,127.06 = 313,650.26/x
  3. Step 3: Cross multiply
    818,947.22x = 1,228,127.06 × 313,650.26
  4. Step 4: Simplify right side
    818,947.22x = 385,202,363,973.15
  5. Step 5: Solve for x
    x = 385,202,363,973.15/818,947.22
  6. Step 6: Final answer
    x = 470,362.87

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1.5x scale

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.