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Finding the Fourth Proportional to 549,081.60, 758,007.78 and 345,244.65

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Solution

The fourth proportional to 549,081.60, 758,007.78 and 345,244.65 is: 476,610.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,081.60 : 758,007.78 = 345,244.65 : x
  2. Step 2: Convert to fraction form
    549,081.60/758,007.78 = 345,244.65/x
  3. Step 3: Cross multiply
    549,081.60x = 758,007.78 × 345,244.65
  4. Step 4: Simplify right side
    549,081.60x = 261,698,130,703.38
  5. Step 5: Solve for x
    x = 261,698,130,703.38/549,081.60
  6. Step 6: Final answer
    x = 476,610.64

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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.