Home / 785,342.70-1,083,744.27-479,930.31

Finding the Fourth Proportional to 785,342.70, 1,083,744.27 and 479,930.31

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Solution

The fourth proportional to 785,342.70, 1,083,744.27 and 479,930.31 is: 662,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,342.70 : 1,083,744.27 = 479,930.31 : x
  2. Step 2: Convert to fraction form
    785,342.70/1,083,744.27 = 479,930.31/x
  3. Step 3: Cross multiply
    785,342.70x = 1,083,744.27 × 479,930.31
  4. Step 4: Simplify right side
    785,342.70x = 520,121,723,461.82
  5. Step 5: Solve for x
    x = 520,121,723,461.82/785,342.70
  6. Step 6: Final answer
    x = 662,286.32

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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.