Home / 743,028.10-1,114,190.82-287,832.53

Finding the Fourth Proportional to 743,028.10, 1,114,190.82 and 287,832.53

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Solution

The fourth proportional to 743,028.10, 1,114,190.82 and 287,832.53 is: 431,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,028.10 : 1,114,190.82 = 287,832.53 : x
  2. Step 2: Convert to fraction form
    743,028.10/1,114,190.82 = 287,832.53/x
  3. Step 3: Cross multiply
    743,028.10x = 1,114,190.82 × 287,832.53
  4. Step 4: Simplify right side
    743,028.10x = 320,700,356,765.17
  5. Step 5: Solve for x
    x = 320,700,356,765.17/743,028.10
  6. Step 6: Final answer
    x = 431,612.69

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1.5x scale

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.