Home / 918,218.70-1,374,606.45-682,605.90

Finding the Fourth Proportional to 918,218.70, 1,374,606.45 and 682,605.90

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Solution

The fourth proportional to 918,218.70, 1,374,606.45 and 682,605.90 is: 1,021,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,218.70 : 1,374,606.45 = 682,605.90 : x
  2. Step 2: Convert to fraction form
    918,218.70/1,374,606.45 = 682,605.90/x
  3. Step 3: Cross multiply
    918,218.70x = 1,374,606.45 × 682,605.90
  4. Step 4: Simplify right side
    918,218.70x = 938,314,472,948.06
  5. Step 5: Solve for x
    x = 938,314,472,948.06/918,218.70
  6. Step 6: Final answer
    x = 1,021,885.61

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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.