Home / 840,075.38-1,260,239.42-271,265.84

Finding the Fourth Proportional to 840,075.38, 1,260,239.42 and 271,265.84

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Solution

The fourth proportional to 840,075.38, 1,260,239.42 and 271,265.84 is: 406,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,075.38 : 1,260,239.42 = 271,265.84 : x
  2. Step 2: Convert to fraction form
    840,075.38/1,260,239.42 = 271,265.84/x
  3. Step 3: Cross multiply
    840,075.38x = 1,260,239.42 × 271,265.84
  4. Step 4: Simplify right side
    840,075.38x = 341,859,899,244.38
  5. Step 5: Solve for x
    x = 341,859,899,244.38/840,075.38
  6. Step 6: Final answer
    x = 406,939.55

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Double scale
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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.