Home / 818,438.82-1,129,502.28-496,162.50

Finding the Fourth Proportional to 818,438.82, 1,129,502.28 and 496,162.50

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Solution

The fourth proportional to 818,438.82, 1,129,502.28 and 496,162.50 is: 684,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,438.82 : 1,129,502.28 = 496,162.50 : x
  2. Step 2: Convert to fraction form
    818,438.82/1,129,502.28 = 496,162.50/x
  3. Step 3: Cross multiply
    818,438.82x = 1,129,502.28 × 496,162.50
  4. Step 4: Simplify right side
    818,438.82x = 560,416,675,000.50
  5. Step 5: Solve for x
    x = 560,416,675,000.50/818,438.82
  6. Step 6: Final answer
    x = 684,738.63

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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.