Home / 1,405,243.15-2,107,549.33-646,355.67

Finding the Fourth Proportional to 1,405,243.15, 2,107,549.33 and 646,355.67

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Solution

The fourth proportional to 1,405,243.15, 2,107,549.33 and 646,355.67 is: 969,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,243.15 : 2,107,549.33 = 646,355.67 : x
  2. Step 2: Convert to fraction form
    1,405,243.15/2,107,549.33 = 646,355.67/x
  3. Step 3: Cross multiply
    1,405,243.15x = 2,107,549.33 × 646,355.67
  4. Step 4: Simplify right side
    1,405,243.15x = 1,362,226,460,058.15
  5. Step 5: Solve for x
    x = 1,362,226,460,058.15/1,405,243.15
  6. Step 6: Final answer
    x = 969,388.44

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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.