Home / 646,996.20-892,842.80-352,648.46

Finding the Fourth Proportional to 646,996.20, 892,842.80 and 352,648.46

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Solution

The fourth proportional to 646,996.20, 892,842.80 and 352,648.46 is: 486,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,996.20 : 892,842.80 = 352,648.46 : x
  2. Step 2: Convert to fraction form
    646,996.20/892,842.80 = 352,648.46/x
  3. Step 3: Cross multiply
    646,996.20x = 892,842.80 × 352,648.46
  4. Step 4: Simplify right side
    646,996.20x = 314,859,635,328.36
  5. Step 5: Solve for x
    x = 314,859,635,328.36/646,996.20
  6. Step 6: Final answer
    x = 486,648.35

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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.