Home / 930,895.20-1,396,342.80-830,511.90

Finding the Fourth Proportional to 930,895.20, 1,396,342.80 and 830,511.90

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Solution

The fourth proportional to 930,895.20, 1,396,342.80 and 830,511.90 is: 1,245,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,895.20 : 1,396,342.80 = 830,511.90 : x
  2. Step 2: Convert to fraction form
    930,895.20/1,396,342.80 = 830,511.90/x
  3. Step 3: Cross multiply
    930,895.20x = 1,396,342.80 × 830,511.90
  4. Step 4: Simplify right side
    930,895.20x = 1,159,679,311,879.32
  5. Step 5: Solve for x
    x = 1,159,679,311,879.32/930,895.20
  6. Step 6: Final answer
    x = 1,245,767.85

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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.