Home / 439,940.12-607,117.38-238,736.12

Finding the Fourth Proportional to 439,940.12, 607,117.38 and 238,736.12

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Solution

The fourth proportional to 439,940.12, 607,117.38 and 238,736.12 is: 329,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,940.12 : 607,117.38 = 238,736.12 : x
  2. Step 2: Convert to fraction form
    439,940.12/607,117.38 = 238,736.12/x
  3. Step 3: Cross multiply
    439,940.12x = 607,117.38 × 238,736.12
  4. Step 4: Simplify right side
    439,940.12x = 144,940,847,685.77
  5. Step 5: Solve for x
    x = 144,940,847,685.77/439,940.12
  6. Step 6: Final answer
    x = 329,455.85

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1.5x scale

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.