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Finding the Fourth Proportional to 549,980.82, 759,003.75 and 308,341.08

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Solution

The fourth proportional to 549,980.82, 759,003.75 and 308,341.08 is: 425,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,980.82 : 759,003.75 = 308,341.08 : x
  2. Step 2: Convert to fraction form
    549,980.82/759,003.75 = 308,341.08/x
  3. Step 3: Cross multiply
    549,980.82x = 759,003.75 × 308,341.08
  4. Step 4: Simplify right side
    549,980.82x = 234,032,035,999.05
  5. Step 5: Solve for x
    x = 234,032,035,999.05/549,980.82
  6. Step 6: Final answer
    x = 425,527.63

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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.