Home / 1,221,676.65-1,685,914-677,811.14

Finding the Fourth Proportional to 1,221,676.65, 1,685,914 and 677,811.14

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Solution

The fourth proportional to 1,221,676.65, 1,685,914 and 677,811.14 is: 935,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,676.65 : 1,685,914 = 677,811.14 : x
  2. Step 2: Convert to fraction form
    1,221,676.65/1,685,914 = 677,811.14/x
  3. Step 3: Cross multiply
    1,221,676.65x = 1,685,914 × 677,811.14
  4. Step 4: Simplify right side
    1,221,676.65x = 1,142,731,290,281.96
  5. Step 5: Solve for x
    x = 1,142,731,290,281.96/1,221,676.65
  6. Step 6: Final answer
    x = 935,379.50

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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.