Home / 1,118,046.45-1,542,870.41-621,328.67

Finding the Fourth Proportional to 1,118,046.45, 1,542,870.41 and 621,328.67

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Solution

The fourth proportional to 1,118,046.45, 1,542,870.41 and 621,328.67 is: 857,414.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,046.45 : 1,542,870.41 = 621,328.67 : x
  2. Step 2: Convert to fraction form
    1,118,046.45/1,542,870.41 = 621,328.67/x
  3. Step 3: Cross multiply
    1,118,046.45x = 1,542,870.41 × 621,328.67
  4. Step 4: Simplify right side
    1,118,046.45x = 958,629,609,006.66
  5. Step 5: Solve for x
    x = 958,629,609,006.66/1,118,046.45
  6. Step 6: Final answer
    x = 857,414.83

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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.