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Finding the Fourth Proportional to 559,984.20, 839,976.30 and 204,880.20

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Solution

The fourth proportional to 559,984.20, 839,976.30 and 204,880.20 is: 307,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,984.20 : 839,976.30 = 204,880.20 : x
  2. Step 2: Convert to fraction form
    559,984.20/839,976.30 = 204,880.20/x
  3. Step 3: Cross multiply
    559,984.20x = 839,976.30 × 204,880.20
  4. Step 4: Simplify right side
    559,984.20x = 172,094,512,339.26
  5. Step 5: Solve for x
    x = 172,094,512,339.26/559,984.20
  6. Step 6: Final answer
    x = 307,320.30

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Double scale
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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.