Home / 678,023.14-1,015,776.30-485,500.18

Finding the Fourth Proportional to 678,023.14, 1,015,776.30 and 485,500.18

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Solution

The fourth proportional to 678,023.14, 1,015,776.30 and 485,500.18 is: 727,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,023.14 : 1,015,776.30 = 485,500.18 : x
  2. Step 2: Convert to fraction form
    678,023.14/1,015,776.30 = 485,500.18/x
  3. Step 3: Cross multiply
    678,023.14x = 1,015,776.30 × 485,500.18
  4. Step 4: Simplify right side
    678,023.14x = 493,159,576,489.73
  5. Step 5: Solve for x
    x = 493,159,576,489.73/678,023.14
  6. Step 6: Final answer
    x = 727,349.18

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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.