Home / 723,778.70-1,085,143.16-486,532.94

Finding the Fourth Proportional to 723,778.70, 1,085,143.16 and 486,532.94

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Solution

The fourth proportional to 723,778.70, 1,085,143.16 and 486,532.94 is: 729,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,778.70 : 1,085,143.16 = 486,532.94 : x
  2. Step 2: Convert to fraction form
    723,778.70/1,085,143.16 = 486,532.94/x
  3. Step 3: Cross multiply
    723,778.70x = 1,085,143.16 × 486,532.94
  4. Step 4: Simplify right side
    723,778.70x = 527,957,891,955.69
  5. Step 5: Solve for x
    x = 527,957,891,955.69/723,778.70
  6. Step 6: Final answer
    x = 729,446.57

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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.