Home / 1,438,119.26-2,157,474.08-427,151.17

Finding the Fourth Proportional to 1,438,119.26, 2,157,474.08 and 427,151.17

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Solution

The fourth proportional to 1,438,119.26, 2,157,474.08 and 427,151.17 is: 640,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,119.26 : 2,157,474.08 = 427,151.17 : x
  2. Step 2: Convert to fraction form
    1,438,119.26/2,157,474.08 = 427,151.17/x
  3. Step 3: Cross multiply
    1,438,119.26x = 2,157,474.08 × 427,151.17
  4. Step 4: Simplify right side
    1,438,119.26x = 921,567,581,281.39
  5. Step 5: Solve for x
    x = 921,567,581,281.39/1,438,119.26
  6. Step 6: Final answer
    x = 640,814.44

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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.