Home / 709,471.48-979,091.38-387,202.26

Finding the Fourth Proportional to 709,471.48, 979,091.38 and 387,202.26

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Solution

The fourth proportional to 709,471.48, 979,091.38 and 387,202.26 is: 534,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,471.48 : 979,091.38 = 387,202.26 : x
  2. Step 2: Convert to fraction form
    709,471.48/979,091.38 = 387,202.26/x
  3. Step 3: Cross multiply
    709,471.48x = 979,091.38 × 387,202.26
  4. Step 4: Simplify right side
    709,471.48x = 379,106,395,082.52
  5. Step 5: Solve for x
    x = 379,106,395,082.52/709,471.48
  6. Step 6: Final answer
    x = 534,350.44

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Double scale
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1.5x scale

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.