Home / 3,418,458.40-5,128,465.20-1,997,783.20

Finding the Fourth Proportional to 3,418,458.40, 5,128,465.20 and 1,997,783.20

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Solution

The fourth proportional to 3,418,458.40, 5,128,465.20 and 1,997,783.20 is: 2,997,129.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,458.40 : 5,128,465.20 = 1,997,783.20 : x
  2. Step 2: Convert to fraction form
    3,418,458.40/5,128,465.20 = 1,997,783.20/x
  3. Step 3: Cross multiply
    3,418,458.40x = 5,128,465.20 × 1,997,783.20
  4. Step 4: Simplify right side
    3,418,458.40x = 10,245,561,618,344.64
  5. Step 5: Solve for x
    x = 10,245,561,618,344.64/3,418,458.40
  6. Step 6: Final answer
    x = 2,997,129.24

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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.