Home / 730,453.64-1,008,126.15-420,349.85

Finding the Fourth Proportional to 730,453.64, 1,008,126.15 and 420,349.85

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Solution

The fourth proportional to 730,453.64, 1,008,126.15 and 420,349.85 is: 580,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,453.64 : 1,008,126.15 = 420,349.85 : x
  2. Step 2: Convert to fraction form
    730,453.64/1,008,126.15 = 420,349.85/x
  3. Step 3: Cross multiply
    730,453.64x = 1,008,126.15 × 420,349.85
  4. Step 4: Simplify right side
    730,453.64x = 423,765,675,933.58
  5. Step 5: Solve for x
    x = 423,765,675,933.58/730,453.64
  6. Step 6: Final answer
    x = 580,140.41

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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.