Home / 646,179.30-891,811.05-370,644.57

Finding the Fourth Proportional to 646,179.30, 891,811.05 and 370,644.57

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Solution

The fourth proportional to 646,179.30, 891,811.05 and 370,644.57 is: 511,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,179.30 : 891,811.05 = 370,644.57 : x
  2. Step 2: Convert to fraction form
    646,179.30/891,811.05 = 370,644.57/x
  3. Step 3: Cross multiply
    646,179.30x = 891,811.05 × 370,644.57
  4. Step 4: Simplify right side
    646,179.30x = 330,544,923,148.50
  5. Step 5: Solve for x
    x = 330,544,923,148.50/646,179.30
  6. Step 6: Final answer
    x = 511,537.47

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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.