Home / 723,628.56-1,085,494.80-191,144.40

Finding the Fourth Proportional to 723,628.56, 1,085,494.80 and 191,144.40

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Solution

The fourth proportional to 723,628.56, 1,085,494.80 and 191,144.40 is: 286,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,628.56 : 1,085,494.80 = 191,144.40 : x
  2. Step 2: Convert to fraction form
    723,628.56/1,085,494.80 = 191,144.40/x
  3. Step 3: Cross multiply
    723,628.56x = 1,085,494.80 × 191,144.40
  4. Step 4: Simplify right side
    723,628.56x = 207,486,252,249.12
  5. Step 5: Solve for x
    x = 207,486,252,249.12/723,628.56
  6. Step 6: Final answer
    x = 286,730.33

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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.