Home / 620,947.89-931,783.23-261,092.70

Finding the Fourth Proportional to 620,947.89, 931,783.23 and 261,092.70

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Solution

The fourth proportional to 620,947.89, 931,783.23 and 261,092.70 is: 391,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,947.89 : 931,783.23 = 261,092.70 : x
  2. Step 2: Convert to fraction form
    620,947.89/931,783.23 = 261,092.70/x
  3. Step 3: Cross multiply
    620,947.89x = 931,783.23 × 261,092.70
  4. Step 4: Simplify right side
    620,947.89x = 243,281,799,335.42
  5. Step 5: Solve for x
    x = 243,281,799,335.42/620,947.89
  6. Step 6: Final answer
    x = 391,791.01

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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.