Home / 1,055,403.40-1,582,983.60-307,449.40

Finding the Fourth Proportional to 1,055,403.40, 1,582,983.60 and 307,449.40

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Solution

The fourth proportional to 1,055,403.40, 1,582,983.60 and 307,449.40 is: 461,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,403.40 : 1,582,983.60 = 307,449.40 : x
  2. Step 2: Convert to fraction form
    1,055,403.40/1,582,983.60 = 307,449.40/x
  3. Step 3: Cross multiply
    1,055,403.40x = 1,582,983.60 × 307,449.40
  4. Step 4: Simplify right side
    1,055,403.40x = 486,687,358,029.84
  5. Step 5: Solve for x
    x = 486,687,358,029.84/1,055,403.40
  6. Step 6: Final answer
    x = 461,138.71

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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.