Home / 1,934,156.57-2,669,148.94-1,209,428.51

Finding the Fourth Proportional to 1,934,156.57, 2,669,148.94 and 1,209,428.51

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Solution

The fourth proportional to 1,934,156.57, 2,669,148.94 and 1,209,428.51 is: 1,669,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934,156.57 : 2,669,148.94 = 1,209,428.51 : x
  2. Step 2: Convert to fraction form
    1,934,156.57/2,669,148.94 = 1,209,428.51/x
  3. Step 3: Cross multiply
    1,934,156.57x = 2,669,148.94 × 1,209,428.51
  4. Step 4: Simplify right side
    1,934,156.57x = 3,228,144,825,472.28
  5. Step 5: Solve for x
    x = 3,228,144,825,472.28/1,934,156.57
  6. Step 6: Final answer
    x = 1,669,019.39

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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.