Home / 857,847.12-1,183,785.48-475,865.70

Finding the Fourth Proportional to 857,847.12, 1,183,785.48 and 475,865.70

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Solution

The fourth proportional to 857,847.12, 1,183,785.48 and 475,865.70 is: 656,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,847.12 : 1,183,785.48 = 475,865.70 : x
  2. Step 2: Convert to fraction form
    857,847.12/1,183,785.48 = 475,865.70/x
  3. Step 3: Cross multiply
    857,847.12x = 1,183,785.48 × 475,865.70
  4. Step 4: Simplify right side
    857,847.12x = 563,322,906,090.04
  5. Step 5: Solve for x
    x = 563,322,906,090.04/857,847.12
  6. Step 6: Final answer
    x = 656,670.51

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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.