Home / 646,665.19-892,414.05-360,190.06

Finding the Fourth Proportional to 646,665.19, 892,414.05 and 360,190.06

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Solution

The fourth proportional to 646,665.19, 892,414.05 and 360,190.06 is: 497,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,665.19 : 892,414.05 = 360,190.06 : x
  2. Step 2: Convert to fraction form
    646,665.19/892,414.05 = 360,190.06/x
  3. Step 3: Cross multiply
    646,665.19x = 892,414.05 × 360,190.06
  4. Step 4: Simplify right side
    646,665.19x = 321,438,670,214.34
  5. Step 5: Solve for x
    x = 321,438,670,214.34/646,665.19
  6. Step 6: Final answer
    x = 497,071.24

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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.