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Finding the Fourth Proportional to 529,654.30, 730,838.37 and 348,439.48

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Solution

The fourth proportional to 529,654.30, 730,838.37 and 348,439.48 is: 480,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,654.30 : 730,838.37 = 348,439.48 : x
  2. Step 2: Convert to fraction form
    529,654.30/730,838.37 = 348,439.48/x
  3. Step 3: Cross multiply
    529,654.30x = 730,838.37 × 348,439.48
  4. Step 4: Simplify right side
    529,654.30x = 254,652,941,606.85
  5. Step 5: Solve for x
    x = 254,652,941,606.85/529,654.30
  6. Step 6: Final answer
    x = 480,790.85

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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.