Home / 759,658.96-1,048,311.48-420,119.92

Finding the Fourth Proportional to 759,658.96, 1,048,311.48 and 420,119.92

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Solution

The fourth proportional to 759,658.96, 1,048,311.48 and 420,119.92 is: 579,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,658.96 : 1,048,311.48 = 420,119.92 : x
  2. Step 2: Convert to fraction form
    759,658.96/1,048,311.48 = 420,119.92/x
  3. Step 3: Cross multiply
    759,658.96x = 1,048,311.48 × 420,119.92
  4. Step 4: Simplify right side
    759,658.96x = 440,416,535,112.68
  5. Step 5: Solve for x
    x = 440,416,535,112.68/759,658.96
  6. Step 6: Final answer
    x = 579,755.60

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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.