Home / 659,334.11-909,997.56-387,401.94

Finding the Fourth Proportional to 659,334.11, 909,997.56 and 387,401.94

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Solution

The fourth proportional to 659,334.11, 909,997.56 and 387,401.94 is: 534,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,334.11 : 909,997.56 = 387,401.94 : x
  2. Step 2: Convert to fraction form
    659,334.11/909,997.56 = 387,401.94/x
  3. Step 3: Cross multiply
    659,334.11x = 909,997.56 × 387,401.94
  4. Step 4: Simplify right side
    659,334.11x = 352,534,820,139.27
  5. Step 5: Solve for x
    x = 352,534,820,139.27/659,334.11
  6. Step 6: Final answer
    x = 534,683.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.