Home / 3,107,428.30-4,661,142.45-978,165.10

Finding the Fourth Proportional to 3,107,428.30, 4,661,142.45 and 978,165.10

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Solution

The fourth proportional to 3,107,428.30, 4,661,142.45 and 978,165.10 is: 1,467,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107,428.30 : 4,661,142.45 = 978,165.10 : x
  2. Step 2: Convert to fraction form
    3,107,428.30/4,661,142.45 = 978,165.10/x
  3. Step 3: Cross multiply
    3,107,428.30x = 4,661,142.45 × 978,165.10
  4. Step 4: Simplify right side
    3,107,428.30x = 4,559,366,870,718.50
  5. Step 5: Solve for x
    x = 4,559,366,870,718.50/3,107,428.30
  6. Step 6: Final answer
    x = 1,467,247.65

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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.