Home / 638,844.75-958,429.13-239,486.67

Finding the Fourth Proportional to 638,844.75, 958,429.13 and 239,486.67

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Solution

The fourth proportional to 638,844.75, 958,429.13 and 239,486.67 is: 359,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,844.75 : 958,429.13 = 239,486.67 : x
  2. Step 2: Convert to fraction form
    638,844.75/958,429.13 = 239,486.67/x
  3. Step 3: Cross multiply
    638,844.75x = 958,429.13 × 239,486.67
  4. Step 4: Simplify right side
    638,844.75x = 229,530,999,577.26
  5. Step 5: Solve for x
    x = 229,530,999,577.26/638,844.75
  6. Step 6: Final answer
    x = 359,290.73

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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.