Home / 699,120.72-1,048,016.67-445,689.94

Finding the Fourth Proportional to 699,120.72, 1,048,016.67 and 445,689.94

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Solution

The fourth proportional to 699,120.72, 1,048,016.67 and 445,689.94 is: 668,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,120.72 : 1,048,016.67 = 445,689.94 : x
  2. Step 2: Convert to fraction form
    699,120.72/1,048,016.67 = 445,689.94/x
  3. Step 3: Cross multiply
    699,120.72x = 1,048,016.67 × 445,689.94
  4. Step 4: Simplify right side
    699,120.72x = 467,090,486,771.30
  5. Step 5: Solve for x
    x = 467,090,486,771.30/699,120.72
  6. Step 6: Final answer
    x = 668,111.35

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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.