Home / 1,118,905.92-1,678,184.60-613,715.44

Finding the Fourth Proportional to 1,118,905.92, 1,678,184.60 and 613,715.44

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Solution

The fourth proportional to 1,118,905.92, 1,678,184.60 and 613,715.44 is: 920,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,905.92 : 1,678,184.60 = 613,715.44 : x
  2. Step 2: Convert to fraction form
    1,118,905.92/1,678,184.60 = 613,715.44/x
  3. Step 3: Cross multiply
    1,118,905.92x = 1,678,184.60 × 613,715.44
  4. Step 4: Simplify right side
    1,118,905.92x = 1,029,927,800,190.22
  5. Step 5: Solve for x
    x = 1,029,927,800,190.22/1,118,905.92
  6. Step 6: Final answer
    x = 920,477.57

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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.