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Finding the Fourth Proportional to 571,703.22, 858,068.82 and 305,691.12

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Solution

The fourth proportional to 571,703.22, 858,068.82 and 305,691.12 is: 458,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,703.22 : 858,068.82 = 305,691.12 : x
  2. Step 2: Convert to fraction form
    571,703.22/858,068.82 = 305,691.12/x
  3. Step 3: Cross multiply
    571,703.22x = 858,068.82 × 305,691.12
  4. Step 4: Simplify right side
    571,703.22x = 262,304,018,622.88
  5. Step 5: Solve for x
    x = 262,304,018,622.88/571,703.22
  6. Step 6: Final answer
    x = 458,811.51

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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.