Home / 1,123,240.53-1,549,856.91-639,795.09

Finding the Fourth Proportional to 1,123,240.53, 1,549,856.91 and 639,795.09

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Solution

The fourth proportional to 1,123,240.53, 1,549,856.91 and 639,795.09 is: 882,794.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,240.53 : 1,549,856.91 = 639,795.09 : x
  2. Step 2: Convert to fraction form
    1,123,240.53/1,549,856.91 = 639,795.09/x
  3. Step 3: Cross multiply
    1,123,240.53x = 1,549,856.91 × 639,795.09
  4. Step 4: Simplify right side
    1,123,240.53x = 991,590,841,220.57
  5. Step 5: Solve for x
    x = 991,590,841,220.57/1,123,240.53
  6. Step 6: Final answer
    x = 882,794.75

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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.