Home / 422,659.60-634,085.07-242,828.05

Finding the Fourth Proportional to 422,659.60, 634,085.07 and 242,828.05

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Solution

The fourth proportional to 422,659.60, 634,085.07 and 242,828.05 is: 364,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,659.60 : 634,085.07 = 242,828.05 : x
  2. Step 2: Convert to fraction form
    422,659.60/634,085.07 = 242,828.05/x
  3. Step 3: Cross multiply
    422,659.60x = 634,085.07 × 242,828.05
  4. Step 4: Simplify right side
    422,659.60x = 153,973,641,082.21
  5. Step 5: Solve for x
    x = 153,973,641,082.21/422,659.60
  6. Step 6: Final answer
    x = 364,297.04

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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.