Home / 405,037.60-607,440.30-120,716.26

Finding the Fourth Proportional to 405,037.60, 607,440.30 and 120,716.26

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Solution

The fourth proportional to 405,037.60, 607,440.30 and 120,716.26 is: 181,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,037.60 : 607,440.30 = 120,716.26 : x
  2. Step 2: Convert to fraction form
    405,037.60/607,440.30 = 120,716.26/x
  3. Step 3: Cross multiply
    405,037.60x = 607,440.30 × 120,716.26
  4. Step 4: Simplify right side
    405,037.60x = 73,327,921,189.28
  5. Step 5: Solve for x
    x = 73,327,921,189.28/405,037.60
  6. Step 6: Final answer
    x = 181,039.79

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1.5x scale

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.