Home / 668,927.87-1,003,545.05-289,912.26

Finding the Fourth Proportional to 668,927.87, 1,003,545.05 and 289,912.26

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Solution

The fourth proportional to 668,927.87, 1,003,545.05 and 289,912.26 is: 434,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,927.87 : 1,003,545.05 = 289,912.26 : x
  2. Step 2: Convert to fraction form
    668,927.87/1,003,545.05 = 289,912.26/x
  3. Step 3: Cross multiply
    668,927.87x = 1,003,545.05 × 289,912.26
  4. Step 4: Simplify right side
    668,927.87x = 290,940,015,771.05
  5. Step 5: Solve for x
    x = 290,940,015,771.05/668,927.87
  6. Step 6: Final answer
    x = 434,934.81

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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.