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Finding the Fourth Proportional to 702,399.57, 969,318.23 and 380,116.36

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Solution

The fourth proportional to 702,399.57, 969,318.23 and 380,116.36 is: 524,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,399.57 : 969,318.23 = 380,116.36 : x
  2. Step 2: Convert to fraction form
    702,399.57/969,318.23 = 380,116.36/x
  3. Step 3: Cross multiply
    702,399.57x = 969,318.23 × 380,116.36
  4. Step 4: Simplify right side
    702,399.57x = 368,453,716,580.31
  5. Step 5: Solve for x
    x = 368,453,716,580.31/702,399.57
  6. Step 6: Final answer
    x = 524,564.27

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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.