Home / 723,849.40-1,085,255.70-302,908.60

Finding the Fourth Proportional to 723,849.40, 1,085,255.70 and 302,908.60

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Solution

The fourth proportional to 723,849.40, 1,085,255.70 and 302,908.60 is: 454,145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,849.40 : 1,085,255.70 = 302,908.60 : x
  2. Step 2: Convert to fraction form
    723,849.40/1,085,255.70 = 302,908.60/x
  3. Step 3: Cross multiply
    723,849.40x = 1,085,255.70 × 302,908.60
  4. Step 4: Simplify right side
    723,849.40x = 328,733,284,729.02
  5. Step 5: Solve for x
    x = 328,733,284,729.02/723,849.40
  6. Step 6: Final answer
    x = 454,145.97

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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.