Home / 1,425,712.40-2,135,587.80-668,200.40

Finding the Fourth Proportional to 1,425,712.40, 2,135,587.80 and 668,200.40

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Solution

The fourth proportional to 1,425,712.40, 2,135,587.80 and 668,200.40 is: 1,000,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,712.40 : 2,135,587.80 = 668,200.40 : x
  2. Step 2: Convert to fraction form
    1,425,712.40/2,135,587.80 = 668,200.40/x
  3. Step 3: Cross multiply
    1,425,712.40x = 2,135,587.80 × 668,200.40
  4. Step 4: Simplify right side
    1,425,712.40x = 1,427,000,622,195.12
  5. Step 5: Solve for x
    x = 1,427,000,622,195.12/1,425,712.40
  6. Step 6: Final answer
    x = 1,000,903.56

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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.