Home / 678,867.26-1,018,300.85-173,429.33

Finding the Fourth Proportional to 678,867.26, 1,018,300.85 and 173,429.33

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Solution

The fourth proportional to 678,867.26, 1,018,300.85 and 173,429.33 is: 260,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,867.26 : 1,018,300.85 = 173,429.33 : x
  2. Step 2: Convert to fraction form
    678,867.26/1,018,300.85 = 173,429.33/x
  3. Step 3: Cross multiply
    678,867.26x = 1,018,300.85 × 173,429.33
  4. Step 4: Simplify right side
    678,867.26x = 176,603,235,832.54
  5. Step 5: Solve for x
    x = 176,603,235,832.54/678,867.26
  6. Step 6: Final answer
    x = 260,143.99

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1.5x scale

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.