Home / 838,279.22-1,257,419.23-277,313.72

Finding the Fourth Proportional to 838,279.22, 1,257,419.23 and 277,313.72

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Solution

The fourth proportional to 838,279.22, 1,257,419.23 and 277,313.72 is: 415,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,279.22 : 1,257,419.23 = 277,313.72 : x
  2. Step 2: Convert to fraction form
    838,279.22/1,257,419.23 = 277,313.72/x
  3. Step 3: Cross multiply
    838,279.22x = 1,257,419.23 × 277,313.72
  4. Step 4: Simplify right side
    838,279.22x = 348,699,597,290.46
  5. Step 5: Solve for x
    x = 348,699,597,290.46/838,279.22
  6. Step 6: Final answer
    x = 415,970.71

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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.