Home / 959,163.35-1,438,433.53-319,295.21

Finding the Fourth Proportional to 959,163.35, 1,438,433.53 and 319,295.21

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Solution

The fourth proportional to 959,163.35, 1,438,433.53 and 319,295.21 is: 478,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,163.35 : 1,438,433.53 = 319,295.21 : x
  2. Step 2: Convert to fraction form
    959,163.35/1,438,433.53 = 319,295.21/x
  3. Step 3: Cross multiply
    959,163.35x = 1,438,433.53 × 319,295.21
  4. Step 4: Simplify right side
    959,163.35x = 459,284,928,041.99
  5. Step 5: Solve for x
    x = 459,284,928,041.99/959,163.35
  6. Step 6: Final answer
    x = 478,839.12

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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.