Home / 1,111,516.35-1,533,872.53-628,071.09

Finding the Fourth Proportional to 1,111,516.35, 1,533,872.53 and 628,071.09

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Solution

The fourth proportional to 1,111,516.35, 1,533,872.53 and 628,071.09 is: 866,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,516.35 : 1,533,872.53 = 628,071.09 : x
  2. Step 2: Convert to fraction form
    1,111,516.35/1,533,872.53 = 628,071.09/x
  3. Step 3: Cross multiply
    1,111,516.35x = 1,533,872.53 × 628,071.09
  4. Step 4: Simplify right side
    1,111,516.35x = 963,380,991,838.16
  5. Step 5: Solve for x
    x = 963,380,991,838.16/1,111,516.35
  6. Step 6: Final answer
    x = 866,726.78

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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.