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Finding the Fourth Proportional to 707,383.44, 976,187.52 and 385,095.78

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Solution

The fourth proportional to 707,383.44, 976,187.52 and 385,095.78 is: 531,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,383.44 : 976,187.52 = 385,095.78 : x
  2. Step 2: Convert to fraction form
    707,383.44/976,187.52 = 385,095.78/x
  3. Step 3: Cross multiply
    707,383.44x = 976,187.52 × 385,095.78
  4. Step 4: Simplify right side
    707,383.44x = 375,925,694,440.67
  5. Step 5: Solve for x
    x = 375,925,694,440.67/707,383.44
  6. Step 6: Final answer
    x = 531,431.29

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1.5x scale

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.