Home / 2,912,806.40-4,369,209.60-2,415,142.40

Finding the Fourth Proportional to 2,912,806.40, 4,369,209.60 and 2,415,142.40

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Solution

The fourth proportional to 2,912,806.40, 4,369,209.60 and 2,415,142.40 is: 3,622,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,806.40 : 4,369,209.60 = 2,415,142.40 : x
  2. Step 2: Convert to fraction form
    2,912,806.40/4,369,209.60 = 2,415,142.40/x
  3. Step 3: Cross multiply
    2,912,806.40x = 4,369,209.60 × 2,415,142.40
  4. Step 4: Simplify right side
    2,912,806.40x = 10,552,263,359,447.04
  5. Step 5: Solve for x
    x = 10,552,263,359,447.04/2,912,806.40
  6. Step 6: Final answer
    x = 3,622,713.60

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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.