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Finding the Fourth Proportional to 620,820.75, 930,452.04 and 265,417.05

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Solution

The fourth proportional to 620,820.75, 930,452.04 and 265,417.05 is: 397,792.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,820.75 : 930,452.04 = 265,417.05 : x
  2. Step 2: Convert to fraction form
    620,820.75/930,452.04 = 265,417.05/x
  3. Step 3: Cross multiply
    620,820.75x = 930,452.04 × 265,417.05
  4. Step 4: Simplify right side
    620,820.75x = 246,957,835,623.28
  5. Step 5: Solve for x
    x = 246,957,835,623.28/620,820.75
  6. Step 6: Final answer
    x = 397,792.50

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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.