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Finding the Fourth Proportional to 549,261.10, 757,728.57 and 331,552.54

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Solution

The fourth proportional to 549,261.10, 757,728.57 and 331,552.54 is: 457,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,261.10 : 757,728.57 = 331,552.54 : x
  2. Step 2: Convert to fraction form
    549,261.10/757,728.57 = 331,552.54/x
  3. Step 3: Cross multiply
    549,261.10x = 757,728.57 × 331,552.54
  4. Step 4: Simplify right side
    549,261.10x = 251,226,832,014.07
  5. Step 5: Solve for x
    x = 251,226,832,014.07/549,261.10
  6. Step 6: Final answer
    x = 457,390.54

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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.