Home / 756,431.20-1,133,091.60-520,040.80

Finding the Fourth Proportional to 756,431.20, 1,133,091.60 and 520,040.80

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Solution

The fourth proportional to 756,431.20, 1,133,091.60 and 520,040.80 is: 778,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,431.20 : 1,133,091.60 = 520,040.80 : x
  2. Step 2: Convert to fraction form
    756,431.20/1,133,091.60 = 520,040.80/x
  3. Step 3: Cross multiply
    756,431.20x = 1,133,091.60 × 520,040.80
  4. Step 4: Simplify right side
    756,431.20x = 589,253,862,137.28
  5. Step 5: Solve for x
    x = 589,253,862,137.28/756,431.20
  6. Step 6: Final answer
    x = 778,992.01

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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.