Home / 938,400.26-1,407,600.66-339,348.02

Finding the Fourth Proportional to 938,400.26, 1,407,600.66 and 339,348.02

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Solution

The fourth proportional to 938,400.26, 1,407,600.66 and 339,348.02 is: 509,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,400.26 : 1,407,600.66 = 339,348.02 : x
  2. Step 2: Convert to fraction form
    938,400.26/1,407,600.66 = 339,348.02/x
  3. Step 3: Cross multiply
    938,400.26x = 1,407,600.66 × 339,348.02
  4. Step 4: Simplify right side
    938,400.26x = 477,666,496,921.69
  5. Step 5: Solve for x
    x = 477,666,496,921.69/938,400.26
  6. Step 6: Final answer
    x = 509,022.13

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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.