Home / 674,491.12-1,011,606.90-314,562.76

Finding the Fourth Proportional to 674,491.12, 1,011,606.90 and 314,562.76

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Solution

The fourth proportional to 674,491.12, 1,011,606.90 and 314,562.76 is: 471,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,491.12 : 1,011,606.90 = 314,562.76 : x
  2. Step 2: Convert to fraction form
    674,491.12/1,011,606.90 = 314,562.76/x
  3. Step 3: Cross multiply
    674,491.12x = 1,011,606.90 × 314,562.76
  4. Step 4: Simplify right side
    674,491.12x = 318,213,858,499.04
  5. Step 5: Solve for x
    x = 318,213,858,499.04/674,491.12
  6. Step 6: Final answer
    x = 471,783.61

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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.