Home / 731,766-1,009,811.70-405,093.20

Finding the Fourth Proportional to 731,766, 1,009,811.70 and 405,093.20

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Solution

The fourth proportional to 731,766, 1,009,811.70 and 405,093.20 is: 559,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,766 : 1,009,811.70 = 405,093.20 : x
  2. Step 2: Convert to fraction form
    731,766/1,009,811.70 = 405,093.20/x
  3. Step 3: Cross multiply
    731,766x = 1,009,811.70 × 405,093.20
  4. Step 4: Simplify right side
    731,766x = 409,067,852,950.44
  5. Step 5: Solve for x
    x = 409,067,852,950.44/731,766
  6. Step 6: Final answer
    x = 559,014.57

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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.