Home / 731,723.21-1,009,107.19-628,322.31

Finding the Fourth Proportional to 731,723.21, 1,009,107.19 and 628,322.31

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Solution

The fourth proportional to 731,723.21, 1,009,107.19 and 628,322.31 is: 866,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,723.21 : 1,009,107.19 = 628,322.31 : x
  2. Step 2: Convert to fraction form
    731,723.21/1,009,107.19 = 628,322.31/x
  3. Step 3: Cross multiply
    731,723.21x = 1,009,107.19 × 628,322.31
  4. Step 4: Simplify right side
    731,723.21x = 634,044,559,087.60
  5. Step 5: Solve for x
    x = 634,044,559,087.60/731,723.21
  6. Step 6: Final answer
    x = 866,508.74

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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.