Home / 578,574.15-798,414.67-320,440.85

Finding the Fourth Proportional to 578,574.15, 798,414.67 and 320,440.85

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Solution

The fourth proportional to 578,574.15, 798,414.67 and 320,440.85 is: 442,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,574.15 : 798,414.67 = 320,440.85 : x
  2. Step 2: Convert to fraction form
    578,574.15/798,414.67 = 320,440.85/x
  3. Step 3: Cross multiply
    578,574.15x = 798,414.67 × 320,440.85
  4. Step 4: Simplify right side
    578,574.15x = 255,844,675,507.27
  5. Step 5: Solve for x
    x = 255,844,675,507.27/578,574.15
  6. Step 6: Final answer
    x = 442,198.59

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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.