Home / 439,943.06-607,121.46-238,739.06

Finding the Fourth Proportional to 439,943.06, 607,121.46 and 238,739.06

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Solution

The fourth proportional to 439,943.06, 607,121.46 and 238,739.06 is: 329,459.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,943.06 : 607,121.46 = 238,739.06 : x
  2. Step 2: Convert to fraction form
    439,943.06/607,121.46 = 238,739.06/x
  3. Step 3: Cross multiply
    439,943.06x = 607,121.46 × 238,739.06
  4. Step 4: Simplify right side
    439,943.06x = 144,943,608,184.03
  5. Step 5: Solve for x
    x = 144,943,608,184.03/439,943.06
  6. Step 6: Final answer
    x = 329,459.92

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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.