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Finding the Fourth Proportional to 646,960.94, 892,809.63 and 375,189.96

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Solution

The fourth proportional to 646,960.94, 892,809.63 and 375,189.96 is: 517,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,960.94 : 892,809.63 = 375,189.96 : x
  2. Step 2: Convert to fraction form
    646,960.94/892,809.63 = 375,189.96/x
  3. Step 3: Cross multiply
    646,960.94x = 892,809.63 × 375,189.96
  4. Step 4: Simplify right side
    646,960.94x = 334,973,214,122.31
  5. Step 5: Solve for x
    x = 334,973,214,122.31/646,960.94
  6. Step 6: Final answer
    x = 517,764.20

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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.