Home / 448,145.20-671,627.40-329,258.80

Finding the Fourth Proportional to 448,145.20, 671,627.40 and 329,258.80

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Solution

The fourth proportional to 448,145.20, 671,627.40 and 329,258.80 is: 493,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,145.20 : 671,627.40 = 329,258.80 : x
  2. Step 2: Convert to fraction form
    448,145.20/671,627.40 = 329,258.80/x
  3. Step 3: Cross multiply
    448,145.20x = 671,627.40 × 329,258.80
  4. Step 4: Simplify right side
    448,145.20x = 221,139,231,771.12
  5. Step 5: Solve for x
    x = 221,139,231,771.12/448,145.20
  6. Step 6: Final answer
    x = 493,454.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.