Home / 646,982.72-892,863.60-360,503.04

Finding the Fourth Proportional to 646,982.72, 892,863.60 and 360,503.04

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Solution

The fourth proportional to 646,982.72, 892,863.60 and 360,503.04 is: 497,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,982.72 : 892,863.60 = 360,503.04 : x
  2. Step 2: Convert to fraction form
    646,982.72/892,863.60 = 360,503.04/x
  3. Step 3: Cross multiply
    646,982.72x = 892,863.60 × 360,503.04
  4. Step 4: Simplify right side
    646,982.72x = 321,880,042,105.34
  5. Step 5: Solve for x
    x = 321,880,042,105.34/646,982.72
  6. Step 6: Final answer
    x = 497,509.49

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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.