Home / 1,299,043.09-1,948,745.01-400,555.45

Finding the Fourth Proportional to 1,299,043.09, 1,948,745.01 and 400,555.45

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Solution

The fourth proportional to 1,299,043.09, 1,948,745.01 and 400,555.45 is: 600,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,043.09 : 1,948,745.01 = 400,555.45 : x
  2. Step 2: Convert to fraction form
    1,299,043.09/1,948,745.01 = 400,555.45/x
  3. Step 3: Cross multiply
    1,299,043.09x = 1,948,745.01 × 400,555.45
  4. Step 4: Simplify right side
    1,299,043.09x = 780,580,434,415.81
  5. Step 5: Solve for x
    x = 780,580,434,415.81/1,299,043.09
  6. Step 6: Final answer
    x = 600,888.79

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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.