Home / 743,062.73-1,114,242.72-287,867.15

Finding the Fourth Proportional to 743,062.73, 1,114,242.72 and 287,867.15

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Solution

The fourth proportional to 743,062.73, 1,114,242.72 and 287,867.15 is: 431,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,062.73 : 1,114,242.72 = 287,867.15 : x
  2. Step 2: Convert to fraction form
    743,062.73/1,114,242.72 = 287,867.15/x
  3. Step 3: Cross multiply
    743,062.73x = 1,114,242.72 × 287,867.15
  4. Step 4: Simplify right side
    743,062.73x = 320,753,879,657.48
  5. Step 5: Solve for x
    x = 320,753,879,657.48/743,062.73
  6. Step 6: Final answer
    x = 431,664.61

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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.