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Finding the Fourth Proportional to 540,050.40, 744,380.64 and 382,939.20

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Solution

The fourth proportional to 540,050.40, 744,380.64 and 382,939.20 is: 527,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,050.40 : 744,380.64 = 382,939.20 : x
  2. Step 2: Convert to fraction form
    540,050.40/744,380.64 = 382,939.20/x
  3. Step 3: Cross multiply
    540,050.40x = 744,380.64 × 382,939.20
  4. Step 4: Simplify right side
    540,050.40x = 285,052,526,777.09
  5. Step 5: Solve for x
    x = 285,052,526,777.09/540,050.40
  6. Step 6: Final answer
    x = 527,825.79

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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.