Home / 1,279,750.64-1,919,428.68-426,837.20

Finding the Fourth Proportional to 1,279,750.64, 1,919,428.68 and 426,837.20

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Solution

The fourth proportional to 1,279,750.64, 1,919,428.68 and 426,837.20 is: 640,190.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,750.64 : 1,919,428.68 = 426,837.20 : x
  2. Step 2: Convert to fraction form
    1,279,750.64/1,919,428.68 = 426,837.20/x
  3. Step 3: Cross multiply
    1,279,750.64x = 1,919,428.68 × 426,837.20
  4. Step 4: Simplify right side
    1,279,750.64x = 819,283,563,370.90
  5. Step 5: Solve for x
    x = 819,283,563,370.90/1,279,750.64
  6. Step 6: Final answer
    x = 640,190.00

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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.