Home / 439,869.40-659,739.30-124,358.20

Finding the Fourth Proportional to 439,869.40, 659,739.30 and 124,358.20

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Solution

The fourth proportional to 439,869.40, 659,739.30 and 124,358.20 is: 186,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,869.40 : 659,739.30 = 124,358.20 : x
  2. Step 2: Convert to fraction form
    439,869.40/659,739.30 = 124,358.20/x
  3. Step 3: Cross multiply
    439,869.40x = 659,739.30 × 124,358.20
  4. Step 4: Simplify right side
    439,869.40x = 82,043,991,817.26
  5. Step 5: Solve for x
    x = 82,043,991,817.26/439,869.40
  6. Step 6: Final answer
    x = 186,518.98

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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.