Home / 987,324.30-1,480,986.45-239,370.30

Finding the Fourth Proportional to 987,324.30, 1,480,986.45 and 239,370.30

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Solution

The fourth proportional to 987,324.30, 1,480,986.45 and 239,370.30 is: 359,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,324.30 : 1,480,986.45 = 239,370.30 : x
  2. Step 2: Convert to fraction form
    987,324.30/1,480,986.45 = 239,370.30/x
  3. Step 3: Cross multiply
    987,324.30x = 1,480,986.45 × 239,370.30
  4. Step 4: Simplify right side
    987,324.30x = 354,504,170,832.44
  5. Step 5: Solve for x
    x = 354,504,170,832.44/987,324.30
  6. Step 6: Final answer
    x = 359,055.45

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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.