Home / 1,320,178.35-1,981,544.63-637,543.67

Finding the Fourth Proportional to 1,320,178.35, 1,981,544.63 and 637,543.67

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Solution

The fourth proportional to 1,320,178.35, 1,981,544.63 and 637,543.67 is: 956,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,178.35 : 1,981,544.63 = 637,543.67 : x
  2. Step 2: Convert to fraction form
    1,320,178.35/1,981,544.63 = 637,543.67/x
  3. Step 3: Cross multiply
    1,320,178.35x = 1,981,544.63 × 637,543.67
  4. Step 4: Simplify right side
    1,320,178.35x = 1,263,321,222,583.55
  5. Step 5: Solve for x
    x = 1,263,321,222,583.55/1,320,178.35
  6. Step 6: Final answer
    x = 956,932.24

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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.