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Finding the Fourth Proportional to 585,993.12, 808,638.48 and 331,395.36

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Solution

The fourth proportional to 585,993.12, 808,638.48 and 331,395.36 is: 457,307.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,993.12 : 808,638.48 = 331,395.36 : x
  2. Step 2: Convert to fraction form
    585,993.12/808,638.48 = 331,395.36/x
  3. Step 3: Cross multiply
    585,993.12x = 808,638.48 × 331,395.36
  4. Step 4: Simplify right side
    585,993.12x = 267,979,040,189.45
  5. Step 5: Solve for x
    x = 267,979,040,189.45/585,993.12
  6. Step 6: Final answer
    x = 457,307.49

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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.