Home / 1,419,433.42-2,129,485.75-459,887.47

Finding the Fourth Proportional to 1,419,433.42, 2,129,485.75 and 459,887.47

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Solution

The fourth proportional to 1,419,433.42, 2,129,485.75 and 459,887.47 is: 689,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,433.42 : 2,129,485.75 = 459,887.47 : x
  2. Step 2: Convert to fraction form
    1,419,433.42/2,129,485.75 = 459,887.47/x
  3. Step 3: Cross multiply
    1,419,433.42x = 2,129,485.75 × 459,887.47
  4. Step 4: Simplify right side
    1,419,433.42x = 979,323,819,473.48
  5. Step 5: Solve for x
    x = 979,323,819,473.48/1,419,433.42
  6. Step 6: Final answer
    x = 689,939.95

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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.