Home / 756,903.20-1,133,799.60-520,512.80

Finding the Fourth Proportional to 756,903.20, 1,133,799.60 and 520,512.80

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Solution

The fourth proportional to 756,903.20, 1,133,799.60 and 520,512.80 is: 779,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,903.20 : 1,133,799.60 = 520,512.80 : x
  2. Step 2: Convert to fraction form
    756,903.20/1,133,799.60 = 520,512.80/x
  3. Step 3: Cross multiply
    756,903.20x = 1,133,799.60 × 520,512.80
  4. Step 4: Simplify right side
    756,903.20x = 590,157,204,434.88
  5. Step 5: Solve for x
    x = 590,157,204,434.88/756,903.20
  6. Step 6: Final answer
    x = 779,699.71

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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.