Home / 1,372,905.09-2,059,335.54-426,276.72

Finding the Fourth Proportional to 1,372,905.09, 2,059,335.54 and 426,276.72

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Solution

The fourth proportional to 1,372,905.09, 2,059,335.54 and 426,276.72 is: 639,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,905.09 : 2,059,335.54 = 426,276.72 : x
  2. Step 2: Convert to fraction form
    1,372,905.09/2,059,335.54 = 426,276.72/x
  3. Step 3: Cross multiply
    1,372,905.09x = 2,059,335.54 × 426,276.72
  4. Step 4: Simplify right side
    1,372,905.09x = 877,846,799,370.63
  5. Step 5: Solve for x
    x = 877,846,799,370.63/1,372,905.09
  6. Step 6: Final answer
    x = 639,408.22

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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.