Home / 1,899,577.43-2,621,421.18-1,028,421.30

Finding the Fourth Proportional to 1,899,577.43, 2,621,421.18 and 1,028,421.30

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Solution

The fourth proportional to 1,899,577.43, 2,621,421.18 and 1,028,421.30 is: 1,419,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,577.43 : 2,621,421.18 = 1,028,421.30 : x
  2. Step 2: Convert to fraction form
    1,899,577.43/2,621,421.18 = 1,028,421.30/x
  3. Step 3: Cross multiply
    1,899,577.43x = 2,621,421.18 × 1,028,421.30
  4. Step 4: Simplify right side
    1,899,577.43x = 2,695,925,377,783.13
  5. Step 5: Solve for x
    x = 2,695,925,377,783.13/1,899,577.43
  6. Step 6: Final answer
    x = 1,419,223.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.