Home / 723,418.30-1,085,021.82-210,945.72

Finding the Fourth Proportional to 723,418.30, 1,085,021.82 and 210,945.72

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Solution

The fourth proportional to 723,418.30, 1,085,021.82 and 210,945.72 is: 316,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,418.30 : 1,085,021.82 = 210,945.72 : x
  2. Step 2: Convert to fraction form
    723,418.30/1,085,021.82 = 210,945.72/x
  3. Step 3: Cross multiply
    723,418.30x = 1,085,021.82 × 210,945.72
  4. Step 4: Simplify right side
    723,418.30x = 228,880,713,726.13
  5. Step 5: Solve for x
    x = 228,880,713,726.13/723,418.30
  6. Step 6: Final answer
    x = 316,387.79

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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.