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Finding the Fourth Proportional to 549,007.78, 757,595.58 and 307,249.54

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Solution

The fourth proportional to 549,007.78, 757,595.58 and 307,249.54 is: 423,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,007.78 : 757,595.58 = 307,249.54 : x
  2. Step 2: Convert to fraction form
    549,007.78/757,595.58 = 307,249.54/x
  3. Step 3: Cross multiply
    549,007.78x = 757,595.58 × 307,249.54
  4. Step 4: Simplify right side
    549,007.78x = 232,770,893,461.03
  5. Step 5: Solve for x
    x = 232,770,893,461.03/549,007.78
  6. Step 6: Final answer
    x = 423,984.69

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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.