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Finding the Fourth Proportional to 620,751.32, 856,609.23 and 362,652.20

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Solution

The fourth proportional to 620,751.32, 856,609.23 and 362,652.20 is: 500,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,751.32 : 856,609.23 = 362,652.20 : x
  2. Step 2: Convert to fraction form
    620,751.32/856,609.23 = 362,652.20/x
  3. Step 3: Cross multiply
    620,751.32x = 856,609.23 × 362,652.20
  4. Step 4: Simplify right side
    620,751.32x = 310,651,221,799.81
  5. Step 5: Solve for x
    x = 310,651,221,799.81/620,751.32
  6. Step 6: Final answer
    x = 500,443.92

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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.