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Finding the Fourth Proportional to 590,679, 815,137.02 and 322,407

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Solution

The fourth proportional to 590,679, 815,137.02 and 322,407 is: 444,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,679 : 815,137.02 = 322,407 : x
  2. Step 2: Convert to fraction form
    590,679/815,137.02 = 322,407/x
  3. Step 3: Cross multiply
    590,679x = 815,137.02 × 322,407
  4. Step 4: Simplify right side
    590,679x = 262,805,881,207.14
  5. Step 5: Solve for x
    x = 262,805,881,207.14/590,679
  6. Step 6: Final answer
    x = 444,921.66

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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.