Home / 438,205.41-655,578.63-331,895.67

Finding the Fourth Proportional to 438,205.41, 655,578.63 and 331,895.67

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Solution

The fourth proportional to 438,205.41, 655,578.63 and 331,895.67 is: 496,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,205.41 : 655,578.63 = 331,895.67 : x
  2. Step 2: Convert to fraction form
    438,205.41/655,578.63 = 331,895.67/x
  3. Step 3: Cross multiply
    438,205.41x = 655,578.63 × 331,895.67
  4. Step 4: Simplify right side
    438,205.41x = 217,583,708,641.53
  5. Step 5: Solve for x
    x = 217,583,708,641.53/438,205.41
  6. Step 6: Final answer
    x = 496,533.60

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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.