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Finding the Fourth Proportional to 500,776.46, 691,065.63 and 271,329.26

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Solution

The fourth proportional to 500,776.46, 691,065.63 and 271,329.26 is: 374,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,776.46 : 691,065.63 = 271,329.26 : x
  2. Step 2: Convert to fraction form
    500,776.46/691,065.63 = 271,329.26/x
  3. Step 3: Cross multiply
    500,776.46x = 691,065.63 × 271,329.26
  4. Step 4: Simplify right side
    500,776.46x = 187,506,325,999.33
  5. Step 5: Solve for x
    x = 187,506,325,999.33/500,776.46
  6. Step 6: Final answer
    x = 374,431.19

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1.5x scale

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.