Home / 1,338,412.56-2,007,193.06-439,645.78

Finding the Fourth Proportional to 1,338,412.56, 2,007,193.06 and 439,645.78

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Solution

The fourth proportional to 1,338,412.56, 2,007,193.06 and 439,645.78 is: 659,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,412.56 : 2,007,193.06 = 439,645.78 : x
  2. Step 2: Convert to fraction form
    1,338,412.56/2,007,193.06 = 439,645.78/x
  3. Step 3: Cross multiply
    1,338,412.56x = 2,007,193.06 × 439,645.78
  4. Step 4: Simplify right side
    1,338,412.56x = 882,453,950,242.37
  5. Step 5: Solve for x
    x = 882,453,950,242.37/1,338,412.56
  6. Step 6: Final answer
    x = 659,328.80

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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.