Home / 578,923.02-798,901.92-320,797.80

Finding the Fourth Proportional to 578,923.02, 798,901.92 and 320,797.80

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Solution

The fourth proportional to 578,923.02, 798,901.92 and 320,797.80 is: 442,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,923.02 : 798,901.92 = 320,797.80 : x
  2. Step 2: Convert to fraction form
    578,923.02/798,901.92 = 320,797.80/x
  3. Step 3: Cross multiply
    578,923.02x = 798,901.92 × 320,797.80
  4. Step 4: Simplify right side
    578,923.02x = 256,285,978,351.78
  5. Step 5: Solve for x
    x = 256,285,978,351.78/578,923.02
  6. Step 6: Final answer
    x = 442,694.40

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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.