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Finding the Fourth Proportional to 559,660.53, 772,334.15 and 317,956.37

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Solution

The fourth proportional to 559,660.53, 772,334.15 and 317,956.37 is: 438,781.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,660.53 : 772,334.15 = 317,956.37 : x
  2. Step 2: Convert to fraction form
    559,660.53/772,334.15 = 317,956.37/x
  3. Step 3: Cross multiply
    559,660.53x = 772,334.15 × 317,956.37
  4. Step 4: Simplify right side
    559,660.53x = 245,568,557,309.58
  5. Step 5: Solve for x
    x = 245,568,557,309.58/559,660.53
  6. Step 6: Final answer
    x = 438,781.27

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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.