Home / 646,656.72-892,363.14-360,161.34

Finding the Fourth Proportional to 646,656.72, 892,363.14 and 360,161.34

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Solution

The fourth proportional to 646,656.72, 892,363.14 and 360,161.34 is: 497,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,656.72 : 892,363.14 = 360,161.34 : x
  2. Step 2: Convert to fraction form
    646,656.72/892,363.14 = 360,161.34/x
  3. Step 3: Cross multiply
    646,656.72x = 892,363.14 × 360,161.34
  4. Step 4: Simplify right side
    646,656.72x = 321,394,704,269.01
  5. Step 5: Solve for x
    x = 321,394,704,269.01/646,656.72
  6. Step 6: Final answer
    x = 497,009.76

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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.