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Finding the Fourth Proportional to 707,536.86, 976,403.21 and 385,248.89

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Solution

The fourth proportional to 707,536.86, 976,403.21 and 385,248.89 is: 531,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,536.86 : 976,403.21 = 385,248.89 : x
  2. Step 2: Convert to fraction form
    707,536.86/976,403.21 = 385,248.89/x
  3. Step 3: Cross multiply
    707,536.86x = 976,403.21 × 385,248.89
  4. Step 4: Simplify right side
    707,536.86x = 376,158,246,036.68
  5. Step 5: Solve for x
    x = 376,158,246,036.68/707,536.86
  6. Step 6: Final answer
    x = 531,644.73

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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.