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Finding the Fourth Proportional to 707,457.88, 976,292.02 and 385,168

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Solution

The fourth proportional to 707,457.88, 976,292.02 and 385,168 is: 531,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,457.88 : 976,292.02 = 385,168 : x
  2. Step 2: Convert to fraction form
    707,457.88/976,292.02 = 385,168/x
  3. Step 3: Cross multiply
    707,457.88x = 976,292.02 × 385,168
  4. Step 4: Simplify right side
    707,457.88x = 376,036,444,759.36
  5. Step 5: Solve for x
    x = 376,036,444,759.36/707,457.88
  6. Step 6: Final answer
    x = 531,531.92

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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.