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Finding the Fourth Proportional to 620,891.72, 931,343.34 and 247,010.12

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Solution

The fourth proportional to 620,891.72, 931,343.34 and 247,010.12 is: 370,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,891.72 : 931,343.34 = 247,010.12 : x
  2. Step 2: Convert to fraction form
    620,891.72/931,343.34 = 247,010.12/x
  3. Step 3: Cross multiply
    620,891.72x = 931,343.34 × 247,010.12
  4. Step 4: Simplify right side
    620,891.72x = 230,051,230,174.60
  5. Step 5: Solve for x
    x = 230,051,230,174.60/620,891.72
  6. Step 6: Final answer
    x = 370,517.47

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1.5x scale

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.