Home / 1,107,923.40-1,661,589.81-309,064.20

Finding the Fourth Proportional to 1,107,923.40, 1,661,589.81 and 309,064.20

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Solution

The fourth proportional to 1,107,923.40, 1,661,589.81 and 309,064.20 is: 463,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,923.40 : 1,661,589.81 = 309,064.20 : x
  2. Step 2: Convert to fraction form
    1,107,923.40/1,661,589.81 = 309,064.20/x
  3. Step 3: Cross multiply
    1,107,923.40x = 1,661,589.81 × 309,064.20
  4. Step 4: Simplify right side
    1,107,923.40x = 513,537,925,355.80
  5. Step 5: Solve for x
    x = 513,537,925,355.80/1,107,923.40
  6. Step 6: Final answer
    x = 463,513.93

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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.