Home / 778,205.70-1,166,660.55-329,271.30

Finding the Fourth Proportional to 778,205.70, 1,166,660.55 and 329,271.30

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Solution

The fourth proportional to 778,205.70, 1,166,660.55 and 329,271.30 is: 493,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,205.70 : 1,166,660.55 = 329,271.30 : x
  2. Step 2: Convert to fraction form
    778,205.70/1,166,660.55 = 329,271.30/x
  3. Step 3: Cross multiply
    778,205.70x = 1,166,660.55 × 329,271.30
  4. Step 4: Simplify right side
    778,205.70x = 384,147,835,957.22
  5. Step 5: Solve for x
    x = 384,147,835,957.22/778,205.70
  6. Step 6: Final answer
    x = 493,632.77

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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.