Home / 725,408.24-1,088,953.04-389,105.76

Finding the Fourth Proportional to 725,408.24, 1,088,953.04 and 389,105.76

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Solution

The fourth proportional to 725,408.24, 1,088,953.04 and 389,105.76 is: 584,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,408.24 : 1,088,953.04 = 389,105.76 : x
  2. Step 2: Convert to fraction form
    725,408.24/1,088,953.04 = 389,105.76/x
  3. Step 3: Cross multiply
    725,408.24x = 1,088,953.04 × 389,105.76
  4. Step 4: Simplify right side
    725,408.24x = 423,717,898,287.98
  5. Step 5: Solve for x
    x = 423,717,898,287.98/725,408.24
  6. Step 6: Final answer
    x = 584,109.57

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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.