Home / 890,388.56-1,230,365.68-648,250.86

Finding the Fourth Proportional to 890,388.56, 1,230,365.68 and 648,250.86

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Solution

The fourth proportional to 890,388.56, 1,230,365.68 and 648,250.86 is: 895,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,388.56 : 1,230,365.68 = 648,250.86 : x
  2. Step 2: Convert to fraction form
    890,388.56/1,230,365.68 = 648,250.86/x
  3. Step 3: Cross multiply
    890,388.56x = 1,230,365.68 × 648,250.86
  4. Step 4: Simplify right side
    890,388.56x = 797,585,610,174.49
  5. Step 5: Solve for x
    x = 797,585,610,174.49/890,388.56
  6. Step 6: Final answer
    x = 895,772.53

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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.