Home / 728,060.80-1,091,799.60-254,502.40

Finding the Fourth Proportional to 728,060.80, 1,091,799.60 and 254,502.40

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Solution

The fourth proportional to 728,060.80, 1,091,799.60 and 254,502.40 is: 381,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,060.80 : 1,091,799.60 = 254,502.40 : x
  2. Step 2: Convert to fraction form
    728,060.80/1,091,799.60 = 254,502.40/x
  3. Step 3: Cross multiply
    728,060.80x = 1,091,799.60 × 254,502.40
  4. Step 4: Simplify right side
    728,060.80x = 277,865,618,519.04
  5. Step 5: Solve for x
    x = 277,865,618,519.04/728,060.80
  6. Step 6: Final answer
    x = 381,651.67

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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.