Home / 578,981.52-798,990.12-324,334.80

Finding the Fourth Proportional to 578,981.52, 798,990.12 and 324,334.80

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Solution

The fourth proportional to 578,981.52, 798,990.12 and 324,334.80 is: 447,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,981.52 : 798,990.12 = 324,334.80 : x
  2. Step 2: Convert to fraction form
    578,981.52/798,990.12 = 324,334.80/x
  3. Step 3: Cross multiply
    578,981.52x = 798,990.12 × 324,334.80
  4. Step 4: Simplify right side
    578,981.52x = 259,140,300,772.18
  5. Step 5: Solve for x
    x = 259,140,300,772.18/578,981.52
  6. Step 6: Final answer
    x = 447,579.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.