Home / 448,978.75-619,434.34-287,922.60

Finding the Fourth Proportional to 448,978.75, 619,434.34 and 287,922.60

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Solution

The fourth proportional to 448,978.75, 619,434.34 and 287,922.60 is: 397,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,978.75 : 619,434.34 = 287,922.60 : x
  2. Step 2: Convert to fraction form
    448,978.75/619,434.34 = 287,922.60/x
  3. Step 3: Cross multiply
    448,978.75x = 619,434.34 × 287,922.60
  4. Step 4: Simplify right side
    448,978.75x = 178,349,144,982.28
  5. Step 5: Solve for x
    x = 178,349,144,982.28/448,978.75
  6. Step 6: Final answer
    x = 397,232.93

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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.