Home / 1,425,368.70-1,967,040.54-813,509.19

Finding the Fourth Proportional to 1,425,368.70, 1,967,040.54 and 813,509.19

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Solution

The fourth proportional to 1,425,368.70, 1,967,040.54 and 813,509.19 is: 1,122,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,368.70 : 1,967,040.54 = 813,509.19 : x
  2. Step 2: Convert to fraction form
    1,425,368.70/1,967,040.54 = 813,509.19/x
  3. Step 3: Cross multiply
    1,425,368.70x = 1,967,040.54 × 813,509.19
  4. Step 4: Simplify right side
    1,425,368.70x = 1,600,205,556,392.56
  5. Step 5: Solve for x
    x = 1,600,205,556,392.56/1,425,368.70
  6. Step 6: Final answer
    x = 1,122,660.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.