Home / 439,904.20-659,856.30-370,784.20

Finding the Fourth Proportional to 439,904.20, 659,856.30 and 370,784.20

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Solution

The fourth proportional to 439,904.20, 659,856.30 and 370,784.20 is: 556,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,904.20 : 659,856.30 = 370,784.20 : x
  2. Step 2: Convert to fraction form
    439,904.20/659,856.30 = 370,784.20/x
  3. Step 3: Cross multiply
    439,904.20x = 659,856.30 × 370,784.20
  4. Step 4: Simplify right side
    439,904.20x = 244,664,290,310.46
  5. Step 5: Solve for x
    x = 244,664,290,310.46/439,904.20
  6. Step 6: Final answer
    x = 556,176.30

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Similar ratio
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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.