Home / 678,742.64-1,018,112.88-173,303.36

Finding the Fourth Proportional to 678,742.64, 1,018,112.88 and 173,303.36

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Solution

The fourth proportional to 678,742.64, 1,018,112.88 and 173,303.36 is: 259,954.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,742.64 : 1,018,112.88 = 173,303.36 : x
  2. Step 2: Convert to fraction form
    678,742.64/1,018,112.88 = 173,303.36/x
  3. Step 3: Cross multiply
    678,742.64x = 1,018,112.88 × 173,303.36
  4. Step 4: Simplify right side
    678,742.64x = 176,442,382,963.28
  5. Step 5: Solve for x
    x = 176,442,382,963.28/678,742.64
  6. Step 6: Final answer
    x = 259,954.76

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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.