Home / 1,078,838.40-1,618,257.60-368,889.60

Finding the Fourth Proportional to 1,078,838.40, 1,618,257.60 and 368,889.60

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Solution

The fourth proportional to 1,078,838.40, 1,618,257.60 and 368,889.60 is: 553,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,838.40 : 1,618,257.60 = 368,889.60 : x
  2. Step 2: Convert to fraction form
    1,078,838.40/1,618,257.60 = 368,889.60/x
  3. Step 3: Cross multiply
    1,078,838.40x = 1,618,257.60 × 368,889.60
  4. Step 4: Simplify right side
    1,078,838.40x = 596,958,398,760.96
  5. Step 5: Solve for x
    x = 596,958,398,760.96/1,078,838.40
  6. Step 6: Final answer
    x = 553,334.40

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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.