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Finding the Fourth Proportional to 580,378.80, 871,259.40 and 327,860.40

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Solution

The fourth proportional to 580,378.80, 871,259.40 and 327,860.40 is: 492,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,378.80 : 871,259.40 = 327,860.40 : x
  2. Step 2: Convert to fraction form
    580,378.80/871,259.40 = 327,860.40/x
  3. Step 3: Cross multiply
    580,378.80x = 871,259.40 × 327,860.40
  4. Step 4: Simplify right side
    580,378.80x = 285,651,455,387.76
  5. Step 5: Solve for x
    x = 285,651,455,387.76/580,378.80
  6. Step 6: Final answer
    x = 492,181.06

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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.