Home / 1,542,003.40-2,313,005.10-420,070.60

Finding the Fourth Proportional to 1,542,003.40, 2,313,005.10 and 420,070.60

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Solution

The fourth proportional to 1,542,003.40, 2,313,005.10 and 420,070.60 is: 630,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,003.40 : 2,313,005.10 = 420,070.60 : x
  2. Step 2: Convert to fraction form
    1,542,003.40/2,313,005.10 = 420,070.60/x
  3. Step 3: Cross multiply
    1,542,003.40x = 2,313,005.10 × 420,070.60
  4. Step 4: Simplify right side
    1,542,003.40x = 971,625,440,160.06
  5. Step 5: Solve for x
    x = 971,625,440,160.06/1,542,003.40
  6. Step 6: Final answer
    x = 630,105.90

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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.