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Finding the Fourth Proportional to 549,316.82, 758,134.01 and 396,848.30

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Solution

The fourth proportional to 549,316.82, 758,134.01 and 396,848.30 is: 547,706.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,316.82 : 758,134.01 = 396,848.30 : x
  2. Step 2: Convert to fraction form
    549,316.82/758,134.01 = 396,848.30/x
  3. Step 3: Cross multiply
    549,316.82x = 758,134.01 × 396,848.30
  4. Step 4: Simplify right side
    549,316.82x = 300,864,190,242.13
  5. Step 5: Solve for x
    x = 300,864,190,242.13/549,316.82
  6. Step 6: Final answer
    x = 547,706.13

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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.