Home / 626,276.70-939,415.05-271,982.70

Finding the Fourth Proportional to 626,276.70, 939,415.05 and 271,982.70

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Solution

The fourth proportional to 626,276.70, 939,415.05 and 271,982.70 is: 407,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,276.70 : 939,415.05 = 271,982.70 : x
  2. Step 2: Convert to fraction form
    626,276.70/939,415.05 = 271,982.70/x
  3. Step 3: Cross multiply
    626,276.70x = 939,415.05 × 271,982.70
  4. Step 4: Simplify right side
    626,276.70x = 255,504,641,719.64
  5. Step 5: Solve for x
    x = 255,504,641,719.64/626,276.70
  6. Step 6: Final answer
    x = 407,974.05

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Half scale
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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.