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Finding the Fourth Proportional to 646,580.46, 892,308.69 and 360,100.50

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Solution

The fourth proportional to 646,580.46, 892,308.69 and 360,100.50 is: 496,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,580.46 : 892,308.69 = 360,100.50 : x
  2. Step 2: Convert to fraction form
    646,580.46/892,308.69 = 360,100.50/x
  3. Step 3: Cross multiply
    646,580.46x = 892,308.69 × 360,100.50
  4. Step 4: Simplify right side
    646,580.46x = 321,320,805,423.35
  5. Step 5: Solve for x
    x = 321,320,805,423.35/646,580.46
  6. Step 6: Final answer
    x = 496,954.09

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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.