Home / 439,972.40-659,764.20-173,644.40

Finding the Fourth Proportional to 439,972.40, 659,764.20 and 173,644.40

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Solution

The fourth proportional to 439,972.40, 659,764.20 and 173,644.40 is: 260,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,972.40 : 659,764.20 = 173,644.40 : x
  2. Step 2: Convert to fraction form
    439,972.40/659,764.20 = 173,644.40/x
  3. Step 3: Cross multiply
    439,972.40x = 659,764.20 × 173,644.40
  4. Step 4: Simplify right side
    439,972.40x = 114,564,358,650.48
  5. Step 5: Solve for x
    x = 114,564,358,650.48/439,972.40
  6. Step 6: Final answer
    x = 260,389.88

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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.