Home / 987,240.36-1,480,855.68-239,286.36

Finding the Fourth Proportional to 987,240.36, 1,480,855.68 and 239,286.36

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Solution

The fourth proportional to 987,240.36, 1,480,855.68 and 239,286.36 is: 358,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,240.36 : 1,480,855.68 = 239,286.36 : x
  2. Step 2: Convert to fraction form
    987,240.36/1,480,855.68 = 239,286.36/x
  3. Step 3: Cross multiply
    987,240.36x = 1,480,855.68 × 239,286.36
  4. Step 4: Simplify right side
    987,240.36x = 354,348,565,352.53
  5. Step 5: Solve for x
    x = 354,348,565,352.53/987,240.36
  6. Step 6: Final answer
    x = 358,928.36

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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.