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Finding the Fourth Proportional to 707,645.34, 976,521.06 and 385,354.62

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Solution

The fourth proportional to 707,645.34, 976,521.06 and 385,354.62 is: 531,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,645.34 : 976,521.06 = 385,354.62 : x
  2. Step 2: Convert to fraction form
    707,645.34/976,521.06 = 385,354.62/x
  3. Step 3: Cross multiply
    707,645.34x = 976,521.06 × 385,354.62
  4. Step 4: Simplify right side
    707,645.34x = 376,306,901,998.30
  5. Step 5: Solve for x
    x = 376,306,901,998.30/707,645.34
  6. Step 6: Final answer
    x = 531,773.31

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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.