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Finding the Fourth Proportional to 646,560.68, 892,362.31 and 374,798.57

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Solution

The fourth proportional to 646,560.68, 892,362.31 and 374,798.57 is: 517,284.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,560.68 : 892,362.31 = 374,798.57 : x
  2. Step 2: Convert to fraction form
    646,560.68/892,362.31 = 374,798.57/x
  3. Step 3: Cross multiply
    646,560.68x = 892,362.31 × 374,798.57
  4. Step 4: Simplify right side
    646,560.68x = 334,456,112,311.09
  5. Step 5: Solve for x
    x = 334,456,112,311.09/646,560.68
  6. Step 6: Final answer
    x = 517,284.96

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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.