Home / 769,873.70-1,062,383.10-425,689.58

Finding the Fourth Proportional to 769,873.70, 1,062,383.10 and 425,689.58

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Solution

The fourth proportional to 769,873.70, 1,062,383.10 and 425,689.58 is: 587,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,873.70 : 1,062,383.10 = 425,689.58 : x
  2. Step 2: Convert to fraction form
    769,873.70/1,062,383.10 = 425,689.58/x
  3. Step 3: Cross multiply
    769,873.70x = 1,062,383.10 × 425,689.58
  4. Step 4: Simplify right side
    769,873.70x = 452,245,415,638.10
  5. Step 5: Solve for x
    x = 452,245,415,638.10/769,873.70
  6. Step 6: Final answer
    x = 587,428.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.