Home / 743,055.86-1,114,232.48-287,860.29

Finding the Fourth Proportional to 743,055.86, 1,114,232.48 and 287,860.29

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Solution

The fourth proportional to 743,055.86, 1,114,232.48 and 287,860.29 is: 431,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,055.86 : 1,114,232.48 = 287,860.29 : x
  2. Step 2: Convert to fraction form
    743,055.86/1,114,232.48 = 287,860.29/x
  3. Step 3: Cross multiply
    743,055.86x = 1,114,232.48 × 287,860.29
  4. Step 4: Simplify right side
    743,055.86x = 320,743,284,820.22
  5. Step 5: Solve for x
    x = 320,743,284,820.22/743,055.86
  6. Step 6: Final answer
    x = 431,654.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.