Home / 351,474.80-525,983.40-321,983.60

Finding the Fourth Proportional to 351,474.80, 525,983.40 and 321,983.60

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Solution

The fourth proportional to 351,474.80, 525,983.40 and 321,983.60 is: 481,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,474.80 : 525,983.40 = 321,983.60 : x
  2. Step 2: Convert to fraction form
    351,474.80/525,983.40 = 321,983.60/x
  3. Step 3: Cross multiply
    351,474.80x = 525,983.40 × 321,983.60
  4. Step 4: Simplify right side
    351,474.80x = 169,358,028,672.24
  5. Step 5: Solve for x
    x = 169,358,028,672.24/351,474.80
  6. Step 6: Final answer
    x = 481,849.70

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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.