Home / 938,616.86-1,407,090.29-339,444.81

Finding the Fourth Proportional to 938,616.86, 1,407,090.29 and 339,444.81

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Solution

The fourth proportional to 938,616.86, 1,407,090.29 and 339,444.81 is: 508,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,616.86 : 1,407,090.29 = 339,444.81 : x
  2. Step 2: Convert to fraction form
    938,616.86/1,407,090.29 = 339,444.81/x
  3. Step 3: Cross multiply
    938,616.86x = 1,407,090.29 × 339,444.81
  4. Step 4: Simplify right side
    938,616.86x = 477,629,496,990.51
  5. Step 5: Solve for x
    x = 477,629,496,990.51/938,616.86
  6. Step 6: Final answer
    x = 508,865.25

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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.