Home / 351,945.48-483,886.40-313,337.64

Finding the Fourth Proportional to 351,945.48, 483,886.40 and 313,337.64

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Solution

The fourth proportional to 351,945.48, 483,886.40 and 313,337.64 is: 430,804.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,945.48 : 483,886.40 = 313,337.64 : x
  2. Step 2: Convert to fraction form
    351,945.48/483,886.40 = 313,337.64/x
  3. Step 3: Cross multiply
    351,945.48x = 483,886.40 × 313,337.64
  4. Step 4: Simplify right side
    351,945.48x = 151,619,822,604.10
  5. Step 5: Solve for x
    x = 151,619,822,604.10/351,945.48
  6. Step 6: Final answer
    x = 430,804.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.