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Finding the Fourth Proportional to 326,597.79, 489,927.50 and 126,933.47

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Solution

The fourth proportional to 326,597.79, 489,927.50 and 126,933.47 is: 190,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,597.79 : 489,927.50 = 126,933.47 : x
  2. Step 2: Convert to fraction form
    326,597.79/489,927.50 = 126,933.47/x
  3. Step 3: Cross multiply
    326,597.79x = 489,927.50 × 126,933.47
  4. Step 4: Simplify right side
    326,597.79x = 62,188,194,539.12
  5. Step 5: Solve for x
    x = 62,188,194,539.12/326,597.79
  6. Step 6: Final answer
    x = 190,412.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.