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Finding the Fourth Proportional to 707,464.88, 976,301.68 and 385,175

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Solution

The fourth proportional to 707,464.88, 976,301.68 and 385,175 is: 531,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,464.88 : 976,301.68 = 385,175 : x
  2. Step 2: Convert to fraction form
    707,464.88/976,301.68 = 385,175/x
  3. Step 3: Cross multiply
    707,464.88x = 976,301.68 × 385,175
  4. Step 4: Simplify right side
    707,464.88x = 376,046,999,594
  5. Step 5: Solve for x
    x = 376,046,999,594/707,464.88
  6. Step 6: Final answer
    x = 531,541.58

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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.