Home / 620,948.89-931,784.73-261,093.70

Finding the Fourth Proportional to 620,948.89, 931,784.73 and 261,093.70

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Solution

The fourth proportional to 620,948.89, 931,784.73 and 261,093.70 is: 391,792.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,948.89 : 931,784.73 = 261,093.70 : x
  2. Step 2: Convert to fraction form
    620,948.89/931,784.73 = 261,093.70/x
  3. Step 3: Cross multiply
    620,948.89x = 931,784.73 × 261,093.70
  4. Step 4: Simplify right side
    620,948.89x = 243,283,122,759.20
  5. Step 5: Solve for x
    x = 243,283,122,759.20/620,948.89
  6. Step 6: Final answer
    x = 391,792.51

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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.