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Finding the Fourth Proportional to 702,458.37, 969,393.74 and 380,168.79

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Solution

The fourth proportional to 702,458.37, 969,393.74 and 380,168.79 is: 524,633.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,458.37 : 969,393.74 = 380,168.79 : x
  2. Step 2: Convert to fraction form
    702,458.37/969,393.74 = 380,168.79/x
  3. Step 3: Cross multiply
    702,458.37x = 969,393.74 × 380,168.79
  4. Step 4: Simplify right side
    702,458.37x = 368,533,243,268.53
  5. Step 5: Solve for x
    x = 368,533,243,268.53/702,458.37
  6. Step 6: Final answer
    x = 524,633.57

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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.