Home / 1,078,160.40-1,617,240.60-330,109.20

Finding the Fourth Proportional to 1,078,160.40, 1,617,240.60 and 330,109.20

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Solution

The fourth proportional to 1,078,160.40, 1,617,240.60 and 330,109.20 is: 495,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,160.40 : 1,617,240.60 = 330,109.20 : x
  2. Step 2: Convert to fraction form
    1,078,160.40/1,617,240.60 = 330,109.20/x
  3. Step 3: Cross multiply
    1,078,160.40x = 1,617,240.60 × 330,109.20
  4. Step 4: Simplify right side
    1,078,160.40x = 533,866,000,673.52
  5. Step 5: Solve for x
    x = 533,866,000,673.52/1,078,160.40
  6. Step 6: Final answer
    x = 495,163.80

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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.