Home / 1,330,362.20-1,994,960.10-531,378.20

Finding the Fourth Proportional to 1,330,362.20, 1,994,960.10 and 531,378.20

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Solution

The fourth proportional to 1,330,362.20, 1,994,960.10 and 531,378.20 is: 796,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,362.20 : 1,994,960.10 = 531,378.20 : x
  2. Step 2: Convert to fraction form
    1,330,362.20/1,994,960.10 = 531,378.20/x
  3. Step 3: Cross multiply
    1,330,362.20x = 1,994,960.10 × 531,378.20
  4. Step 4: Simplify right side
    1,330,362.20x = 1,060,078,307,009.82
  5. Step 5: Solve for x
    x = 1,060,078,307,009.82/1,330,362.20
  6. Step 6: Final answer
    x = 796,834.36

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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.