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Finding the Fourth Proportional to 647,039.31, 892,809.22 and 375,054.07

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Solution

The fourth proportional to 647,039.31, 892,809.22 and 375,054.07 is: 517,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,039.31 : 892,809.22 = 375,054.07 : x
  2. Step 2: Convert to fraction form
    647,039.31/892,809.22 = 375,054.07/x
  3. Step 3: Cross multiply
    647,039.31x = 892,809.22 × 375,054.07
  4. Step 4: Simplify right side
    647,039.31x = 334,851,731,694.53
  5. Step 5: Solve for x
    x = 334,851,731,694.53/647,039.31
  6. Step 6: Final answer
    x = 517,513.74

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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.