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Finding the Fourth Proportional to 529,245.36, 730,422.36 and 302,886

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Solution

The fourth proportional to 529,245.36, 730,422.36 and 302,886 is: 418,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,245.36 : 730,422.36 = 302,886 : x
  2. Step 2: Convert to fraction form
    529,245.36/730,422.36 = 302,886/x
  3. Step 3: Cross multiply
    529,245.36x = 730,422.36 × 302,886
  4. Step 4: Simplify right side
    529,245.36x = 221,234,706,930.96
  5. Step 5: Solve for x
    x = 221,234,706,930.96/529,245.36
  6. Step 6: Final answer
    x = 418,019.17

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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.