Home / 1,219,589.76-1,683,618.90-857,324.16

Finding the Fourth Proportional to 1,219,589.76, 1,683,618.90 and 857,324.16

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Solution

The fourth proportional to 1,219,589.76, 1,683,618.90 and 857,324.16 is: 1,183,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,589.76 : 1,683,618.90 = 857,324.16 : x
  2. Step 2: Convert to fraction form
    1,219,589.76/1,683,618.90 = 857,324.16/x
  3. Step 3: Cross multiply
    1,219,589.76x = 1,683,618.90 × 857,324.16
  4. Step 4: Simplify right side
    1,219,589.76x = 1,443,407,159,202.62
  5. Step 5: Solve for x
    x = 1,443,407,159,202.62/1,219,589.76
  6. Step 6: Final answer
    x = 1,183,518.59

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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.