Home / 1,404,048.19-2,106,072.21-393,319.79

Finding the Fourth Proportional to 1,404,048.19, 2,106,072.21 and 393,319.79

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Solution

The fourth proportional to 1,404,048.19, 2,106,072.21 and 393,319.79 is: 589,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,048.19 : 2,106,072.21 = 393,319.79 : x
  2. Step 2: Convert to fraction form
    1,404,048.19/2,106,072.21 = 393,319.79/x
  3. Step 3: Cross multiply
    1,404,048.19x = 2,106,072.21 × 393,319.79
  4. Step 4: Simplify right side
    1,404,048.19x = 828,359,879,362.04
  5. Step 5: Solve for x
    x = 828,359,879,362.04/1,404,048.19
  6. Step 6: Final answer
    x = 589,979.67

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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.