Home / 1,128,379.88-1,556,755.54-741,403.72

Finding the Fourth Proportional to 1,128,379.88, 1,556,755.54 and 741,403.72

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Solution

The fourth proportional to 1,128,379.88, 1,556,755.54 and 741,403.72 is: 1,022,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,379.88 : 1,556,755.54 = 741,403.72 : x
  2. Step 2: Convert to fraction form
    1,128,379.88/1,556,755.54 = 741,403.72/x
  3. Step 3: Cross multiply
    1,128,379.88x = 1,556,755.54 × 741,403.72
  4. Step 4: Simplify right side
    1,128,379.88x = 1,154,184,348,486.61
  5. Step 5: Solve for x
    x = 1,154,184,348,486.61/1,128,379.88
  6. Step 6: Final answer
    x = 1,022,868.60

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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.