Home / 646,244.43-891,788.54-370,404.55

Finding the Fourth Proportional to 646,244.43, 891,788.54 and 370,404.55

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Solution

The fourth proportional to 646,244.43, 891,788.54 and 370,404.55 is: 511,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,244.43 : 891,788.54 = 370,404.55 : x
  2. Step 2: Convert to fraction form
    646,244.43/891,788.54 = 370,404.55/x
  3. Step 3: Cross multiply
    646,244.43x = 891,788.54 × 370,404.55
  4. Step 4: Simplify right side
    646,244.43x = 330,322,530,225.55
  5. Step 5: Solve for x
    x = 330,322,530,225.55/646,244.43
  6. Step 6: Final answer
    x = 511,141.78

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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.