Home / 1,289,782.56-1,934,717.20-579,812.96

Finding the Fourth Proportional to 1,289,782.56, 1,934,717.20 and 579,812.96

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Solution

The fourth proportional to 1,289,782.56, 1,934,717.20 and 579,812.96 is: 869,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,782.56 : 1,934,717.20 = 579,812.96 : x
  2. Step 2: Convert to fraction form
    1,289,782.56/1,934,717.20 = 579,812.96/x
  3. Step 3: Cross multiply
    1,289,782.56x = 1,934,717.20 × 579,812.96
  4. Step 4: Simplify right side
    1,289,782.56x = 1,121,774,106,494.91
  5. Step 5: Solve for x
    x = 1,121,774,106,494.91/1,289,782.56
  6. Step 6: Final answer
    x = 869,738.93

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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.