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Finding the Fourth Proportional to 532,611.36, 734,992.29 and 290,894.88

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Solution

The fourth proportional to 532,611.36, 734,992.29 and 290,894.88 is: 401,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,611.36 : 734,992.29 = 290,894.88 : x
  2. Step 2: Convert to fraction form
    532,611.36/734,992.29 = 290,894.88/x
  3. Step 3: Cross multiply
    532,611.36x = 734,992.29 × 290,894.88
  4. Step 4: Simplify right side
    532,611.36x = 213,805,494,000.48
  5. Step 5: Solve for x
    x = 213,805,494,000.48/532,611.36
  6. Step 6: Final answer
    x = 401,428.72

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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.