Home / 644,821.52-965,749.26-374,279.63

Finding the Fourth Proportional to 644,821.52, 965,749.26 and 374,279.63

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Solution

The fourth proportional to 644,821.52, 965,749.26 and 374,279.63 is: 560,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,821.52 : 965,749.26 = 374,279.63 : x
  2. Step 2: Convert to fraction form
    644,821.52/965,749.26 = 374,279.63/x
  3. Step 3: Cross multiply
    644,821.52x = 965,749.26 × 374,279.63
  4. Step 4: Simplify right side
    644,821.52x = 361,460,270,876.83
  5. Step 5: Solve for x
    x = 361,460,270,876.83/644,821.52
  6. Step 6: Final answer
    x = 560,558.63

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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.