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Finding the Fourth Proportional to 549,430.32, 758,331 and 323,204.88

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Solution

The fourth proportional to 549,430.32, 758,331 and 323,204.88 is: 446,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,430.32 : 758,331 = 323,204.88 : x
  2. Step 2: Convert to fraction form
    549,430.32/758,331 = 323,204.88/x
  3. Step 3: Cross multiply
    549,430.32x = 758,331 × 323,204.88
  4. Step 4: Simplify right side
    549,430.32x = 245,096,279,855.28
  5. Step 5: Solve for x
    x = 245,096,279,855.28/549,430.32
  6. Step 6: Final answer
    x = 446,091.65

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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.