Home / 1,172,705.67-1,618,336.94-636,161.67

Finding the Fourth Proportional to 1,172,705.67, 1,618,336.94 and 636,161.67

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Solution

The fourth proportional to 1,172,705.67, 1,618,336.94 and 636,161.67 is: 877,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,705.67 : 1,618,336.94 = 636,161.67 : x
  2. Step 2: Convert to fraction form
    1,172,705.67/1,618,336.94 = 636,161.67/x
  3. Step 3: Cross multiply
    1,172,705.67x = 1,618,336.94 × 636,161.67
  4. Step 4: Simplify right side
    1,172,705.67x = 1,029,523,927,192.28
  5. Step 5: Solve for x
    x = 1,029,523,927,192.28/1,172,705.67
  6. Step 6: Final answer
    x = 877,904.79

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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.