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Finding the Fourth Proportional to 662,667.12, 992,505.24 and 306,933.84

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Solution

The fourth proportional to 662,667.12, 992,505.24 and 306,933.84 is: 459,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,667.12 : 992,505.24 = 306,933.84 : x
  2. Step 2: Convert to fraction form
    662,667.12/992,505.24 = 306,933.84/x
  3. Step 3: Cross multiply
    662,667.12x = 992,505.24 × 306,933.84
  4. Step 4: Simplify right side
    662,667.12x = 304,633,444,533.32
  5. Step 5: Solve for x
    x = 304,633,444,533.32/662,667.12
  6. Step 6: Final answer
    x = 459,708.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.