Home / 728,040.80-1,091,769.60-254,482.40

Finding the Fourth Proportional to 728,040.80, 1,091,769.60 and 254,482.40

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Solution

The fourth proportional to 728,040.80, 1,091,769.60 and 254,482.40 is: 381,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,040.80 : 1,091,769.60 = 254,482.40 : x
  2. Step 2: Convert to fraction form
    728,040.80/1,091,769.60 = 254,482.40/x
  3. Step 3: Cross multiply
    728,040.80x = 1,091,769.60 × 254,482.40
  4. Step 4: Simplify right side
    728,040.80x = 277,836,148,055.04
  5. Step 5: Solve for x
    x = 277,836,148,055.04/728,040.80
  6. Step 6: Final answer
    x = 381,621.67

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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.