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Finding the Fourth Proportional to 648,271.50, 894,611.43 and 361,774.50

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Solution

The fourth proportional to 648,271.50, 894,611.43 and 361,774.50 is: 499,247.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,271.50 : 894,611.43 = 361,774.50 : x
  2. Step 2: Convert to fraction form
    648,271.50/894,611.43 = 361,774.50/x
  3. Step 3: Cross multiply
    648,271.50x = 894,611.43 × 361,774.50
  4. Step 4: Simplify right side
    648,271.50x = 323,647,602,782.54
  5. Step 5: Solve for x
    x = 323,647,602,782.54/648,271.50
  6. Step 6: Final answer
    x = 499,247.00

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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.