Home / 513,896.18-709,004.48-298,990.22

Finding the Fourth Proportional to 513,896.18, 709,004.48 and 298,990.22

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Solution

The fourth proportional to 513,896.18, 709,004.48 and 298,990.22 is: 412,506.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,896.18 : 709,004.48 = 298,990.22 : x
  2. Step 2: Convert to fraction form
    513,896.18/709,004.48 = 298,990.22/x
  3. Step 3: Cross multiply
    513,896.18x = 709,004.48 × 298,990.22
  4. Step 4: Simplify right side
    513,896.18x = 211,985,405,456.19
  5. Step 5: Solve for x
    x = 211,985,405,456.19/513,896.18
  6. Step 6: Final answer
    x = 412,506.29

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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.