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Finding the Fourth Proportional to 416,848.81, 575,449.70 and 279,264.64

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Solution

The fourth proportional to 416,848.81, 575,449.70 and 279,264.64 is: 385,518.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,848.81 : 575,449.70 = 279,264.64 : x
  2. Step 2: Convert to fraction form
    416,848.81/575,449.70 = 279,264.64/x
  3. Step 3: Cross multiply
    416,848.81x = 575,449.70 × 279,264.64
  4. Step 4: Simplify right side
    416,848.81x = 160,702,753,308.61
  5. Step 5: Solve for x
    x = 160,702,753,308.61/416,848.81
  6. Step 6: Final answer
    x = 385,518.08

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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.