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Finding the Fourth Proportional to 529,181.37, 730,275.48 and 287,465.90

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Solution

The fourth proportional to 529,181.37, 730,275.48 and 287,465.90 is: 396,705.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,181.37 : 730,275.48 = 287,465.90 : x
  2. Step 2: Convert to fraction form
    529,181.37/730,275.48 = 287,465.90/x
  3. Step 3: Cross multiply
    529,181.37x = 730,275.48 × 287,465.90
  4. Step 4: Simplify right side
    529,181.37x = 209,929,294,454.76
  5. Step 5: Solve for x
    x = 209,929,294,454.76/529,181.37
  6. Step 6: Final answer
    x = 396,705.75

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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.