Home / 1,138,261.56-1,570,890.54-648,251.90

Finding the Fourth Proportional to 1,138,261.56, 1,570,890.54 and 648,251.90

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Solution

The fourth proportional to 1,138,261.56, 1,570,890.54 and 648,251.90 is: 894,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,261.56 : 1,570,890.54 = 648,251.90 : x
  2. Step 2: Convert to fraction form
    1,138,261.56/1,570,890.54 = 648,251.90/x
  3. Step 3: Cross multiply
    1,138,261.56x = 1,570,890.54 × 648,251.90
  4. Step 4: Simplify right side
    1,138,261.56x = 1,018,332,777,247.03
  5. Step 5: Solve for x
    x = 1,018,332,777,247.03/1,138,261.56
  6. Step 6: Final answer
    x = 894,638.64

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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.