Home / 485,766.30-723,765.42-458,603.76

Finding the Fourth Proportional to 485,766.30, 723,765.42 and 458,603.76

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Solution

The fourth proportional to 485,766.30, 723,765.42 and 458,603.76 is: 683,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,766.30 : 723,765.42 = 458,603.76 : x
  2. Step 2: Convert to fraction form
    485,766.30/723,765.42 = 458,603.76/x
  3. Step 3: Cross multiply
    485,766.30x = 723,765.42 × 458,603.76
  4. Step 4: Simplify right side
    485,766.30x = 331,921,542,969.98
  5. Step 5: Solve for x
    x = 331,921,542,969.98/485,766.30
  6. Step 6: Final answer
    x = 683,294.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.