Home / 1,118,744.10-1,678,359.15-408,771

Finding the Fourth Proportional to 1,118,744.10, 1,678,359.15 and 408,771

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Solution

The fourth proportional to 1,118,744.10, 1,678,359.15 and 408,771 is: 613,245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,744.10 : 1,678,359.15 = 408,771 : x
  2. Step 2: Convert to fraction form
    1,118,744.10/1,678,359.15 = 408,771/x
  3. Step 3: Cross multiply
    1,118,744.10x = 1,678,359.15 × 408,771
  4. Step 4: Simplify right side
    1,118,744.10x = 686,064,548,104.65
  5. Step 5: Solve for x
    x = 686,064,548,104.65/1,118,744.10
  6. Step 6: Final answer
    x = 613,245.29

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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.