Home / 1,419,615.40-2,129,423.10-422,343.40

Finding the Fourth Proportional to 1,419,615.40, 2,129,423.10 and 422,343.40

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Solution

The fourth proportional to 1,419,615.40, 2,129,423.10 and 422,343.40 is: 633,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,615.40 : 2,129,423.10 = 422,343.40 : x
  2. Step 2: Convert to fraction form
    1,419,615.40/2,129,423.10 = 422,343.40/x
  3. Step 3: Cross multiply
    1,419,615.40x = 2,129,423.10 × 422,343.40
  4. Step 4: Simplify right side
    1,419,615.40x = 899,347,792,092.54
  5. Step 5: Solve for x
    x = 899,347,792,092.54/1,419,615.40
  6. Step 6: Final answer
    x = 633,515.10

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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.