Home / 1,421,586.06-1,961,784-777,005.88

Finding the Fourth Proportional to 1,421,586.06, 1,961,784 and 777,005.88

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Solution

The fourth proportional to 1,421,586.06, 1,961,784 and 777,005.88 is: 1,072,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,586.06 : 1,961,784 = 777,005.88 : x
  2. Step 2: Convert to fraction form
    1,421,586.06/1,961,784 = 777,005.88/x
  3. Step 3: Cross multiply
    1,421,586.06x = 1,961,784 × 777,005.88
  4. Step 4: Simplify right side
    1,421,586.06x = 1,524,317,703,289.92
  5. Step 5: Solve for x
    x = 1,524,317,703,289.92/1,421,586.06
  6. Step 6: Final answer
    x = 1,072,265.51

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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.