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Finding the Fourth Proportional to 532,611.81, 734,992.93 and 290,895.36

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Solution

The fourth proportional to 532,611.81, 734,992.93 and 290,895.36 is: 401,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,611.81 : 734,992.93 = 290,895.36 : x
  2. Step 2: Convert to fraction form
    532,611.81/734,992.93 = 290,895.36/x
  3. Step 3: Cross multiply
    532,611.81x = 734,992.93 × 290,895.36
  4. Step 4: Simplify right side
    532,611.81x = 213,806,028,567.60
  5. Step 5: Solve for x
    x = 213,806,028,567.60/532,611.81
  6. Step 6: Final answer
    x = 401,429.38

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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.