Home / 909,921.54-1,256,094.36-587,788.68

Finding the Fourth Proportional to 909,921.54, 1,256,094.36 and 587,788.68

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Solution

The fourth proportional to 909,921.54, 1,256,094.36 and 587,788.68 is: 811,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,921.54 : 1,256,094.36 = 587,788.68 : x
  2. Step 2: Convert to fraction form
    909,921.54/1,256,094.36 = 587,788.68/x
  3. Step 3: Cross multiply
    909,921.54x = 1,256,094.36 × 587,788.68
  4. Step 4: Simplify right side
    909,921.54x = 738,318,045,819.85
  5. Step 5: Solve for x
    x = 738,318,045,819.85/909,921.54
  6. Step 6: Final answer
    x = 811,408.47

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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.