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Finding the Fourth Proportional to 529,073.88, 730,124.04 and 287,360.48

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Solution

The fourth proportional to 529,073.88, 730,124.04 and 287,360.48 is: 396,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,073.88 : 730,124.04 = 287,360.48 : x
  2. Step 2: Convert to fraction form
    529,073.88/730,124.04 = 287,360.48/x
  3. Step 3: Cross multiply
    529,073.88x = 730,124.04 × 287,360.48
  4. Step 4: Simplify right side
    529,073.88x = 209,808,793,157.14
  5. Step 5: Solve for x
    x = 209,808,793,157.14/529,073.88
  6. Step 6: Final answer
    x = 396,558.59

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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.