Home / 956,568.78-1,320,037.83-520,976.40

Finding the Fourth Proportional to 956,568.78, 1,320,037.83 and 520,976.40

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Solution

The fourth proportional to 956,568.78, 1,320,037.83 and 520,976.40 is: 718,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,568.78 : 1,320,037.83 = 520,976.40 : x
  2. Step 2: Convert to fraction form
    956,568.78/1,320,037.83 = 520,976.40/x
  3. Step 3: Cross multiply
    956,568.78x = 1,320,037.83 × 520,976.40
  4. Step 4: Simplify right side
    956,568.78x = 687,708,556,537.21
  5. Step 5: Solve for x
    x = 687,708,556,537.21/956,568.78
  6. Step 6: Final answer
    x = 718,932.68

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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.