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Finding the Fourth Proportional to 620,751.82, 856,609.92 and 362,652.70

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Solution

The fourth proportional to 620,751.82, 856,609.92 and 362,652.70 is: 500,444.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,751.82 : 856,609.92 = 362,652.70 : x
  2. Step 2: Convert to fraction form
    620,751.82/856,609.92 = 362,652.70/x
  3. Step 3: Cross multiply
    620,751.82x = 856,609.92 × 362,652.70
  4. Step 4: Simplify right side
    620,751.82x = 310,651,900,334.78
  5. Step 5: Solve for x
    x = 310,651,900,334.78/620,751.82
  6. Step 6: Final answer
    x = 500,444.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.