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Finding the Fourth Proportional to 707,515.04, 976,388.25 and 385,242.77

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Solution

The fourth proportional to 707,515.04, 976,388.25 and 385,242.77 is: 531,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,515.04 : 976,388.25 = 385,242.77 : x
  2. Step 2: Convert to fraction form
    707,515.04/976,388.25 = 385,242.77/x
  3. Step 3: Cross multiply
    707,515.04x = 976,388.25 × 385,242.77
  4. Step 4: Simplify right side
    707,515.04x = 376,146,509,143.51
  5. Step 5: Solve for x
    x = 376,146,509,143.51/707,515.04
  6. Step 6: Final answer
    x = 531,644.55

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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.