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Finding the Fourth Proportional to 549,631.98, 758,273.76 and 342,778.68

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Solution

The fourth proportional to 549,631.98, 758,273.76 and 342,778.68 is: 472,898.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,631.98 : 758,273.76 = 342,778.68 : x
  2. Step 2: Convert to fraction form
    549,631.98/758,273.76 = 342,778.68/x
  3. Step 3: Cross multiply
    549,631.98x = 758,273.76 × 342,778.68
  4. Step 4: Simplify right side
    549,631.98x = 259,920,078,531.44
  5. Step 5: Solve for x
    x = 259,920,078,531.44/549,631.98
  6. Step 6: Final answer
    x = 472,898.39

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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.