Home / 1,425,200.40-2,134,819.80-667,688.40

Finding the Fourth Proportional to 1,425,200.40, 2,134,819.80 and 667,688.40

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Solution

The fourth proportional to 1,425,200.40, 2,134,819.80 and 667,688.40 is: 1,000,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,200.40 : 2,134,819.80 = 667,688.40 : x
  2. Step 2: Convert to fraction form
    1,425,200.40/2,134,819.80 = 667,688.40/x
  3. Step 3: Cross multiply
    1,425,200.40x = 2,134,819.80 × 667,688.40
  4. Step 4: Simplify right side
    1,425,200.40x = 1,425,394,416,550.32
  5. Step 5: Solve for x
    x = 1,425,394,416,550.32/1,425,200.40
  6. Step 6: Final answer
    x = 1,000,136.13

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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.