Home / 744,716.16-1,027,677.60-405,185.76

Finding the Fourth Proportional to 744,716.16, 1,027,677.60 and 405,185.76

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Solution

The fourth proportional to 744,716.16, 1,027,677.60 and 405,185.76 is: 559,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,716.16 : 1,027,677.60 = 405,185.76 : x
  2. Step 2: Convert to fraction form
    744,716.16/1,027,677.60 = 405,185.76/x
  3. Step 3: Cross multiply
    744,716.16x = 1,027,677.60 × 405,185.76
  4. Step 4: Simplify right side
    744,716.16x = 416,400,329,390.98
  5. Step 5: Solve for x
    x = 416,400,329,390.98/744,716.16
  6. Step 6: Final answer
    x = 559,139.65

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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.