Home / 478,568.40-660,453.36-263,708.28

Finding the Fourth Proportional to 478,568.40, 660,453.36 and 263,708.28

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Solution

The fourth proportional to 478,568.40, 660,453.36 and 263,708.28 is: 363,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,568.40 : 660,453.36 = 263,708.28 : x
  2. Step 2: Convert to fraction form
    478,568.40/660,453.36 = 263,708.28/x
  3. Step 3: Cross multiply
    478,568.40x = 660,453.36 × 263,708.28
  4. Step 4: Simplify right side
    478,568.40x = 174,167,019,585.82
  5. Step 5: Solve for x
    x = 174,167,019,585.82/478,568.40
  6. Step 6: Final answer
    x = 363,933.39

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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.