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Finding the Fourth Proportional to 655,316.42, 983,327.76 and 276,499.71

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Solution

The fourth proportional to 655,316.42, 983,327.76 and 276,499.71 is: 414,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,316.42 : 983,327.76 = 276,499.71 : x
  2. Step 2: Convert to fraction form
    655,316.42/983,327.76 = 276,499.71/x
  3. Step 3: Cross multiply
    655,316.42x = 983,327.76 × 276,499.71
  4. Step 4: Simplify right side
    655,316.42x = 271,889,840,474.95
  5. Step 5: Solve for x
    x = 271,889,840,474.95/655,316.42
  6. Step 6: Final answer
    x = 414,898.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.