Home / 1,076,695.41-1,615,789.01-428,205.14

Finding the Fourth Proportional to 1,076,695.41, 1,615,789.01 and 428,205.14

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Solution

The fourth proportional to 1,076,695.41, 1,615,789.01 and 428,205.14 is: 642,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,695.41 : 1,615,789.01 = 428,205.14 : x
  2. Step 2: Convert to fraction form
    1,076,695.41/1,615,789.01 = 428,205.14/x
  3. Step 3: Cross multiply
    1,076,695.41x = 1,615,789.01 × 428,205.14
  4. Step 4: Simplify right side
    1,076,695.41x = 691,889,159,237.51
  5. Step 5: Solve for x
    x = 691,889,159,237.51/1,076,695.41
  6. Step 6: Final answer
    x = 642,604.35

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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.