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Finding the Fourth Proportional to 818,432.82, 1,129,494 and 496,156.50

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Solution

The fourth proportional to 818,432.82, 1,129,494 and 496,156.50 is: 684,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,432.82 : 1,129,494 = 496,156.50 : x
  2. Step 2: Convert to fraction form
    818,432.82/1,129,494 = 496,156.50/x
  3. Step 3: Cross multiply
    818,432.82x = 1,129,494 × 496,156.50
  4. Step 4: Simplify right side
    818,432.82x = 560,405,789,811
  5. Step 5: Solve for x
    x = 560,405,789,811/818,432.82
  6. Step 6: Final answer
    x = 684,730.35

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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.