Home / 1,425,206.40-2,134,828.80-667,694.40

Finding the Fourth Proportional to 1,425,206.40, 2,134,828.80 and 667,694.40

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Solution

The fourth proportional to 1,425,206.40, 2,134,828.80 and 667,694.40 is: 1,000,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,206.40 : 2,134,828.80 = 667,694.40 : x
  2. Step 2: Convert to fraction form
    1,425,206.40/2,134,828.80 = 667,694.40/x
  3. Step 3: Cross multiply
    1,425,206.40x = 2,134,828.80 × 667,694.40
  4. Step 4: Simplify right side
    1,425,206.40x = 1,425,413,234,718.72
  5. Step 5: Solve for x
    x = 1,425,413,234,718.72/1,425,206.40
  6. Step 6: Final answer
    x = 1,000,145.13

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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.