Home / 1,118,764.80-1,678,147.20-488,908.80

Finding the Fourth Proportional to 1,118,764.80, 1,678,147.20 and 488,908.80

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Solution

The fourth proportional to 1,118,764.80, 1,678,147.20 and 488,908.80 is: 733,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,764.80 : 1,678,147.20 = 488,908.80 : x
  2. Step 2: Convert to fraction form
    1,118,764.80/1,678,147.20 = 488,908.80/x
  3. Step 3: Cross multiply
    1,118,764.80x = 1,678,147.20 × 488,908.80
  4. Step 4: Simplify right side
    1,118,764.80x = 820,460,933,775.36
  5. Step 5: Solve for x
    x = 820,460,933,775.36/1,118,764.80
  6. Step 6: Final answer
    x = 733,363.20

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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.