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Finding the Fourth Proportional to 620,891.74, 930,558.52 and 265,488.58

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Solution

The fourth proportional to 620,891.74, 930,558.52 and 265,488.58 is: 397,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,891.74 : 930,558.52 = 265,488.58 : x
  2. Step 2: Convert to fraction form
    620,891.74/930,558.52 = 265,488.58/x
  3. Step 3: Cross multiply
    620,891.74x = 930,558.52 × 265,488.58
  4. Step 4: Simplify right side
    620,891.74x = 247,052,660,081.70
  5. Step 5: Solve for x
    x = 247,052,660,081.70/620,891.74
  6. Step 6: Final answer
    x = 397,899.74

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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.