Home / 586,545.03-809,449.20-331,890.75

Finding the Fourth Proportional to 586,545.03, 809,449.20 and 331,890.75

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Solution

The fourth proportional to 586,545.03, 809,449.20 and 331,890.75 is: 458,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,545.03 : 809,449.20 = 331,890.75 : x
  2. Step 2: Convert to fraction form
    586,545.03/809,449.20 = 331,890.75/x
  3. Step 3: Cross multiply
    586,545.03x = 809,449.20 × 331,890.75
  4. Step 4: Simplify right side
    586,545.03x = 268,648,702,074.90
  5. Step 5: Solve for x
    x = 268,648,702,074.90/586,545.03
  6. Step 6: Final answer
    x = 458,018.89

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1.5x scale

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.