Home / 890,507.88-1,228,905.14-482,610.51

Finding the Fourth Proportional to 890,507.88, 1,228,905.14 and 482,610.51

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Solution

The fourth proportional to 890,507.88, 1,228,905.14 and 482,610.51 is: 666,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,507.88 : 1,228,905.14 = 482,610.51 : x
  2. Step 2: Convert to fraction form
    890,507.88/1,228,905.14 = 482,610.51/x
  3. Step 3: Cross multiply
    890,507.88x = 1,228,905.14 × 482,610.51
  4. Step 4: Simplify right side
    890,507.88x = 593,082,533,943.97
  5. Step 5: Solve for x
    x = 593,082,533,943.97/890,507.88
  6. Step 6: Final answer
    x = 666,004.81

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Double scale
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1.5x scale

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.