Home / 591,346.17-815,772.33-387,307.31

Finding the Fourth Proportional to 591,346.17, 815,772.33 and 387,307.31

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Solution

The fourth proportional to 591,346.17, 815,772.33 and 387,307.31 is: 534,297.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,346.17 : 815,772.33 = 387,307.31 : x
  2. Step 2: Convert to fraction form
    591,346.17/815,772.33 = 387,307.31/x
  3. Step 3: Cross multiply
    591,346.17x = 815,772.33 × 387,307.31
  4. Step 4: Simplify right side
    591,346.17x = 315,954,582,625.87
  5. Step 5: Solve for x
    x = 315,954,582,625.87/591,346.17
  6. Step 6: Final answer
    x = 534,297.17

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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.