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Finding the Fourth Proportional to 531,615.72, 733,641.80 and 302,136.64

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Solution

The fourth proportional to 531,615.72, 733,641.80 and 302,136.64 is: 416,955.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,615.72 : 733,641.80 = 302,136.64 : x
  2. Step 2: Convert to fraction form
    531,615.72/733,641.80 = 302,136.64/x
  3. Step 3: Cross multiply
    531,615.72x = 733,641.80 × 302,136.64
  4. Step 4: Simplify right side
    531,615.72x = 221,660,068,415.55
  5. Step 5: Solve for x
    x = 221,660,068,415.55/531,615.72
  6. Step 6: Final answer
    x = 416,955.44

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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.