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Finding the Fourth Proportional to 529,480.39, 730,682.94 and 287,763.54

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Solution

The fourth proportional to 529,480.39, 730,682.94 and 287,763.54 is: 397,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,480.39 : 730,682.94 = 287,763.54 : x
  2. Step 2: Convert to fraction form
    529,480.39/730,682.94 = 287,763.54/x
  3. Step 3: Cross multiply
    529,480.39x = 730,682.94 × 287,763.54
  4. Step 4: Simplify right side
    529,480.39x = 210,263,906,802.52
  5. Step 5: Solve for x
    x = 210,263,906,802.52/529,480.39
  6. Step 6: Final answer
    x = 397,113.68

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1.5x scale

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.