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Finding the Fourth Proportional to 662,960.64, 914,877.44 and 361,148.16

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Solution

The fourth proportional to 662,960.64, 914,877.44 and 361,148.16 is: 498,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,960.64 : 914,877.44 = 361,148.16 : x
  2. Step 2: Convert to fraction form
    662,960.64/914,877.44 = 361,148.16/x
  3. Step 3: Cross multiply
    662,960.64x = 914,877.44 × 361,148.16
  4. Step 4: Simplify right side
    662,960.64x = 330,406,304,081.51
  5. Step 5: Solve for x
    x = 330,406,304,081.51/662,960.64
  6. Step 6: Final answer
    x = 498,379.97

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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.