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Finding the Fourth Proportional to 540,380.96, 745,731.26 and 295,372.72

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Solution

The fourth proportional to 540,380.96, 745,731.26 and 295,372.72 is: 407,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,380.96 : 745,731.26 = 295,372.72 : x
  2. Step 2: Convert to fraction form
    540,380.96/745,731.26 = 295,372.72/x
  3. Step 3: Cross multiply
    540,380.96x = 745,731.26 × 295,372.72
  4. Step 4: Simplify right side
    540,380.96x = 220,268,667,314.04
  5. Step 5: Solve for x
    x = 220,268,667,314.04/540,380.96
  6. Step 6: Final answer
    x = 407,617.38

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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.