Home / 928,997.12-1,393,161.54-321,620.51

Finding the Fourth Proportional to 928,997.12, 1,393,161.54 and 321,620.51

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Solution

The fourth proportional to 928,997.12, 1,393,161.54 and 321,620.51 is: 482,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,997.12 : 1,393,161.54 = 321,620.51 : x
  2. Step 2: Convert to fraction form
    928,997.12/1,393,161.54 = 321,620.51/x
  3. Step 3: Cross multiply
    928,997.12x = 1,393,161.54 × 321,620.51
  4. Step 4: Simplify right side
    928,997.12x = 448,069,318,041.38
  5. Step 5: Solve for x
    x = 448,069,318,041.38/928,997.12
  6. Step 6: Final answer
    x = 482,315.08

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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.