Home / 1,076,694.41-1,615,787.51-428,204.14

Finding the Fourth Proportional to 1,076,694.41, 1,615,787.51 and 428,204.14

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Solution

The fourth proportional to 1,076,694.41, 1,615,787.51 and 428,204.14 is: 642,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,694.41 : 1,615,787.51 = 428,204.14 : x
  2. Step 2: Convert to fraction form
    1,076,694.41/1,615,787.51 = 428,204.14/x
  3. Step 3: Cross multiply
    1,076,694.41x = 1,615,787.51 × 428,204.14
  4. Step 4: Simplify right side
    1,076,694.41x = 691,886,901,142.29
  5. Step 5: Solve for x
    x = 691,886,901,142.29/1,076,694.41
  6. Step 6: Final answer
    x = 642,602.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.