Home / 643,010.89-964,319.36-444,606.25

Finding the Fourth Proportional to 643,010.89, 964,319.36 and 444,606.25

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Solution

The fourth proportional to 643,010.89, 964,319.36 and 444,606.25 is: 666,773.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,010.89 : 964,319.36 = 444,606.25 : x
  2. Step 2: Convert to fraction form
    643,010.89/964,319.36 = 444,606.25/x
  3. Step 3: Cross multiply
    643,010.89x = 964,319.36 × 444,606.25
  4. Step 4: Simplify right side
    643,010.89x = 428,742,407,407.37
  5. Step 5: Solve for x
    x = 428,742,407,407.37/643,010.89
  6. Step 6: Final answer
    x = 666,773.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.