Home / 3,478,298.40-5,217,447.60-1,777,687.20

Finding the Fourth Proportional to 3,478,298.40, 5,217,447.60 and 1,777,687.20

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Solution

The fourth proportional to 3,478,298.40, 5,217,447.60 and 1,777,687.20 is: 2,666,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,298.40 : 5,217,447.60 = 1,777,687.20 : x
  2. Step 2: Convert to fraction form
    3,478,298.40/5,217,447.60 = 1,777,687.20/x
  3. Step 3: Cross multiply
    3,478,298.40x = 5,217,447.60 × 1,777,687.20
  4. Step 4: Simplify right side
    3,478,298.40x = 9,274,989,815,190.72
  5. Step 5: Solve for x
    x = 9,274,989,815,190.72/3,478,298.40
  6. Step 6: Final answer
    x = 2,666,530.80

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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.