Home / 1,107,817.05-1,662,005.54-309,098.13

Finding the Fourth Proportional to 1,107,817.05, 1,662,005.54 and 309,098.13

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Solution

The fourth proportional to 1,107,817.05, 1,662,005.54 and 309,098.13 is: 463,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,817.05 : 1,662,005.54 = 309,098.13 : x
  2. Step 2: Convert to fraction form
    1,107,817.05/1,662,005.54 = 309,098.13/x
  3. Step 3: Cross multiply
    1,107,817.05x = 1,662,005.54 × 309,098.13
  4. Step 4: Simplify right side
    1,107,817.05x = 513,722,804,463.64
  5. Step 5: Solve for x
    x = 513,722,804,463.64/1,107,817.05
  6. Step 6: Final answer
    x = 463,725.31

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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.