Home / 705,003.83-1,057,898.57-380,785.37

Finding the Fourth Proportional to 705,003.83, 1,057,898.57 and 380,785.37

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Solution

The fourth proportional to 705,003.83, 1,057,898.57 and 380,785.37 is: 571,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,003.83 : 1,057,898.57 = 380,785.37 : x
  2. Step 2: Convert to fraction form
    705,003.83/1,057,898.57 = 380,785.37/x
  3. Step 3: Cross multiply
    705,003.83x = 1,057,898.57 × 380,785.37
  4. Step 4: Simplify right side
    705,003.83x = 402,832,298,399.92
  5. Step 5: Solve for x
    x = 402,832,298,399.92/705,003.83
  6. Step 6: Final answer
    x = 571,390.23

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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.