Home / 744,817.50-1,027,839.51-405,279.90

Finding the Fourth Proportional to 744,817.50, 1,027,839.51 and 405,279.90

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Solution

The fourth proportional to 744,817.50, 1,027,839.51 and 405,279.90 is: 559,281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,817.50 : 1,027,839.51 = 405,279.90 : x
  2. Step 2: Convert to fraction form
    744,817.50/1,027,839.51 = 405,279.90/x
  3. Step 3: Cross multiply
    744,817.50x = 1,027,839.51 × 405,279.90
  4. Step 4: Simplify right side
    744,817.50x = 416,562,693,828.85
  5. Step 5: Solve for x
    x = 416,562,693,828.85/744,817.50
  6. Step 6: Final answer
    x = 559,281.56

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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.